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Plastic Surgery Weekly

The week in peer-reviewed plastic surgery research
Issue 23Sun, Oct 18, 2026289 screened · 63 selected
This Week in Brief

A meta-analysis of 188 studies in J Plast Reconstr Aesthet Surg pools 6,071 flaps for complex open lower limb fractures. It finds total flap failure of 8.0%, deep infection or osteomyelitis in 12.9% of limbs and amputation in 6.3%; risk of bias was moderate in 64.5% of studies. Two Plast Reconstr Surg papers address body contouring. In a three-arm abdominoplasty trial, complication rates did not differ between wide and limited undermining or with added flap liposuction, and liposuction rather than undermining width drove flap thinning and aesthetic gain. A meta-analysis in the same journal ties GLP-1 receptor agonist exposure to more delayed wound healing and hypertrophic scarring, but to fewer seromas than in post-bariatric patients. Also in Plast Reconstr Surg, preoperative ultrasound localized lymphovenous anastomosis sites with a positive predictive value of 95.4% (272 of 285 sites confirmed at surgery) and measured vessel diameters to within about 0.1 mm. A small randomized trial in Burns from a North Indian tertiary center found that excision within 7 days cut median hospital stay from 28.5 to 13.5 days without more organ dysfunction or transfusion, although graft take was lower. GLP-1 drugs appear again in J Plast Reconstr Aesthet Surg: massive weight loss patients with preoperative exposure had 3.7-fold higher odds of infection after body contouring than those who lost weight through lifestyle change.

Across the Field
Reconstruction & Microsurgery.

An intraluminal lymphatic guidewire in Plast Reconstr Surg allowed an additional proximal lymphovenous anastomosis in about half of patients with advanced leg lymphedema, and those patients showed greater limb water reduction (13% vs 3%). A Plast Reconstr Surg Glob Open systematic review finds LVA patency reported anywhere from about one-third to over 90% at both short- and long-term follow-up, with ICG-based studies reporting lower short-term patency than scintigraphy-based ones. An Ann Plast Surg clinical practice guideline for segmental tibial defects pools union rates of 95–96% for bone transport and for vascularized or nonvascularized grafting, against 81% for the Masquelet technique; complications ran highest with free vascularized grafts (94%). Mirrored virtual planning for late post-traumatic orbital-ZMC deformity brought malar projection within 1.6 mm of ideal versus 4.3 mm with intraoperative visual estimation in Plast Reconstr Surg.

Hand & Peripheral Nerve.

Median and ulnar fascicle transfers to the biceps motor branch gave antigravity elbow flexion in 87% and 78% of patients respectively in a prospective randomized Hand (N Y) comparison for upper brachial plexus injury. In children with residual brachial plexus birth injury, transfer of two FDS tendons restored wrist extension with power grip (M4) in 89%, with more reliable gains when preoperative strength was already M3, per J Hand Surg Am. A Microsurgery analysis of 110 reverse-flow posterior interosseous artery flaps flags 9 cm as a warning length for venous congestion and flap loss, and early revision of congested flaps was associated with less loss. Pooled RCTs for thumb CMC osteoarthritis in Hand (N Y) favor dual-mobility implants at 3 months (VAS reduction 6.05 vs 3.52 and 2.86), but pain and function converge by 12 months.

Burns & Wounds.

Prehospital fluid in 884 patients with severe burns from Japan's nationwide trauma registry was not associated with 48-hour or in-hospital mortality after propensity weighting, despite higher crude death rates in the fluid group. Referring physicians overestimated burn size in 76% of 82 patients sent to a Swedish national burn center, and the error grew with burn size. Passive 360° virtual reality added to multimodal analgesia did not reduce opioid use, pain, or anxiety during post-autograft dressing changes in a randomized trial of 82 patients. Amputation after burn injury roughly doubled the 6-month risk of new anxiety in a propensity-matched TriNetX cohort of 4,722 patients, with depression and antidepressant initiation elevated through 2 years.

Breast.

Pooled ICG angiography data in J Plast Reconstr Aesthet Surg give a negative predictive value of 94.7–97.1% for mastectomy skin flap necrosis but a positive predictive value of 21.3%. A Stockholm population-based cohort in BJS Open reports 12-year local recurrence of 14.1% after nipple-sparing versus 3.7% after skin-sparing mastectomy, with no detectable difference in overall survival. Mesh in two-stage prepectoral reconstruction was associated with more complications (18.2% vs 12.9%), driven mainly by infection, without lower failure or revision rates in a multicenter Plast Reconstr Surg cohort. Nasal Staphylococcus aureus screening with decolonization of carriers carried OR 0.59 for surgical site infection within 12 months of implant placement.

Aesthetic.

A drain-free internal suture network of progressive tension and quilting sutures was followed by no hematomas requiring evacuation in 356 facelifts, against 5.9% in an earlier conventional cohort with drains, in a 561-patient Plast Reconstr Surg series. Pooled, mostly nonrandomized data in Aesthetic Plast Surg associate the hemostatic net with about 93% lower odds of hematoma than drain-based closure after cervicofacial rhytidectomy, without more skin necrosis. In-office ultrasound in Aesthet Surg J detected anterior-posterior flipping of silicone implants in 12.7% of patients, with larger volume, prepectoral placement, and lack of soft tissue support as independent risk factors. Layer-by-layer excision of lower eyelid filler granulomas over 15 years resolved complaints without surgical recurrence in 282 patients, though transient ectropion affected 61.7% of high-risk patients.

Sarcoma & Oncology.

Persistent pain followed extremity soft tissue sarcoma resection in 47% of children in a nationwide Eur J Surg Oncol cohort, with suspected neuropathic features in 35% and about fourfold higher odds of chronic pain after neoadjuvant chemotherapy. Anatomy-specific machine learning models for upper extremity soft tissue sarcoma predicted local recurrence with a concordance index of 0.79 in J Surg Oncol, discriminating about as well as the Sarculator and PERSARC nomograms in a single-center cohort. A Head Neck paper describes cutaneous leiomyosarcoma, including head and neck lesions, as far more indolent than leiomyosarcoma in general, with about 3% metastasizing at 10 years and 96–100% 5-year disease-specific survival. Pooled case reports on digital Merkel cell carcinoma show similar recurrence after wide local excision and ray amputation (about 29% vs 25%), with fewer than 10 patients per group.

Artificial Intelligence in Surgery.

Four commercial multimodal AI models identified burns on photographs with 97–100% accuracy but chose correctly between debridement and grafting in only 25–73% of cases, often inconsistently for the same image, in Plast Reconstr Surg Glob Open. ChatGPT, Gemini, and Claude recognized common complications reasonably well across 30 simulated aesthetic surgery scenarios in Aesthetic Plast Surg, but appropriate emergency referral in high-risk cases ranged from 76.7% with Gemini to 96.7% with Claude. AI segmentation of wound photographs in Int Wound J measured wound size more consistently than individual physicians and matched expert consensus for height, though it tended to underestimate width. Among 102 physicians in aesthetic practice, perceived clinical usefulness and ease of use were the strongest predictors of intent to adopt AI, while AI anxiety lowered it.

Translational Research.

Sodium citrate as the anticoagulant for concentrated growth factor reduced injection pain and gave greater hair density gains in androgenetic alopecia than heparin or no anticoagulant in a 267-patient randomized trial in Plast Reconstr Surg. In Nat Commun, 3D-printed minichannel scaffolds filled with cartilage granules, platelet-rich plasma, and adipose-derived stem cells repaired segmental tracheal defects in rabbits and pigs without chondrocyte isolation or expansion, with survival up to 115 days. A nanofat systematic review counts 77 clinical studies with 2,737 patients since 2013 but finds processing methods and study designs too variable for indication-specific conclusions. A double-blind split-body trial in 16 liposuction patients found that cannula design changed fat parcel size and uniformity without measurable effect on adipocyte histologic integrity.

Cases.

A neurotized free gracilis flap restored a reinnervated rectus segment after desmoid resection in a Microsurgery case, with no abdominal wall bulge or tumor recurrence at 5 years. Robotic transabdominal preperitoneal DIEP pedicle harvest through a 2-cm fascial incision took 77 minutes of console time in the first reported Gulf-region case, with no bulge or hernia at 5 months. Simultaneous bilateral replantation at the wrist and distal forearm after 8 hours of ischemia yielded M4 strength and S3 sensation in both hands at 22 months in JPRAS Open. A second JPRAS Open report used ipsilateral gracilis and semitendinosus tendons to rebuild all four FDP tendons after synovial sarcoma excision, with a QuickDASH of 4.5 at one year.

Meta-analysis of adverse outcomes following soft tissue reconstruction of complex open lower limb fractures.

Pooled data from 188 studies suggest that about 8% of flaps for complex open lower limb fractures fail completely, with deep infection or osteomyelitis in about 13% and amputation in about 6% of reconstructed limbs.
Overview

A systematic review and meta-analysis of 188 studies (15,551 patients) pooled proportions of total flap failure, deep infection or osteomyelitis, and amputation after soft tissue reconstruction of complex open lower limb fractures. Of the 10,856 reconstructions, 69.9% were free flaps, and road traffic accidents caused 55.6% of injuries.

Key Findings
  • Pooled total flap failure was 8.0% (95% CI 6.9–9.2) across the 6071 flaps with reported outcomes.
  • Deep infection or osteomyelitis occurred in 12.9% of reconstructed limbs (95% CI 10.6–15.6), the most frequent of the three pooled adverse outcomes.
  • Amputation was required in 6.3% of limbs (95% CI 5.2–7.6) among the 5276 limbs with reported data.
  • Risk of bias was moderate in 64.5% of studies, low in 21.0%, and high in 14.5%.
Caveat

Outcomes were pooled as single-arm proportions across free and local flaps.

Redefining Limits: A Clinical Trial on the Safety of Combining Liposuction with Undermining During Abdominoplasty.

This three-arm trial suggests that adding wide undermining to abdominal flap liposuction does not raise complication rates, and that liposuction rather than undermining width drives flap thinning and aesthetic improvement.
Overview

A three-arm randomized trial compared lipoabdominoplasty with limited undermining, traditional abdominoplasty with wide undermining and no flap liposuction, and a combined technique with wide undermining plus flap liposuction. Outcomes included epigastric pinch thickness, horizontal laxity, operative time, aesthetic results, and complications.

Key Findings
  • Complication rates showed no significant differences across individual groups, between liposuction and no-liposuction arms, or between limited and wide undermining.
  • Liposuction, with or without wide undermining, reduced epigastric pinch thickness more and was associated with better aesthetic outcomes.
  • Undermining extent had no significant effect on flap thickness, horizontal skin laxity, or overall aesthetic results.
  • The combined technique had the longest operative time, attributed to extensive dissection, sub-Scarpa fat removal, and liposuction.
Caveat

The absence of significant differences in complications does not establish equivalent safety between techniques.

Impact of GLP-1 Agonists on Post-Operative Outcomes in Aesthetic & Body Contouring Surgery: A Systematic Review & Meta-Analysis.

Pooled observational data suggest GLP-1 receptor agonist exposure is associated with more delayed wound healing and hypertrophic scarring after aesthetic and body contouring surgery, but fewer seromas than in post-bariatric patients.
Overview

A systematic review and meta-analysis of 12 studies (29,357 patients) compared postoperative outcomes of aesthetic and body contouring surgery with versus without GLP-1 receptor agonist exposure, with 10 studies entering random-effects pooling. Outcomes included infection, dehiscence, delayed healing, hypertrophic scarring, seroma, hematoma, and venous thromboembolism.

Key Findings
  • GLP-1 receptor agonist exposure was associated with an increased risk of delayed wound healing in pooled observational analyses.
  • Hypertrophic scarring was also more frequent with GLP-1 receptor agonist exposure, the second outcome with a pooled adverse association.
  • In subgroup analysis against patients with prior bariatric surgery, GLP-1 receptor agonist users had lower seroma rates.
Caveat

All pooled data are observational, and users may differ from controls in weight-loss magnitude and comorbidity. Whether the healing signal reflects the drug itself or the rapid weight loss and nutritional state it produces remains open.

Diagnostic Accuracy of Ultrasound for Localizing Lymphovenous Anastomosis Sites in Lymphedema Surgery.

Preoperative ultrasound correctly identified surgically usable lymphovenous anastomosis sites in about 95% of explored locations, with vessel diameters within roughly 0.1 mm of intraoperative measurements.
Overview

A retrospective analysis of prospectively collected data from 87 patients (109 examinations) assessed preoperative ultrasound mapping of LVA sites in scintigraphically confirmed limb lymphedema, with intraoperative findings as the reference standard. Positive predictive value, Bland-Altman agreement, and examination time were evaluated.

Key Findings
  • Of 285 ultrasound-localized sites selected for surgery, 272 were confirmed intraoperatively, a PPV of 95.4% (95% CI 92.3–97.5).
  • The 13 false positives were independent of tissue thickness, vessel size, depth, and distance (all p > 0.17).
  • Ultrasound diameters showed minimal bias against intraoperative measurement: +0.13 mm for lymphatics and −0.10 mm for veins.
  • Mean total examination time was 34.7 minutes, and per-image analysis time (7.2 minutes) was unrelated to diagnostic accuracy.
Caveat

Only the 285 sites selected for surgery were verified intraoperatively; the other 185 localized sites and any vessels ultrasound missed were never checked. Sensitivity and negative predictive value remain unknown, as does performance outside this experienced single center.

Impact of early excision in acute burns: A randomized controlled trial from a tertiary centre in North India.

In a small randomized trial from North India, excision within 7 days roughly halved median hospital stay (13.5 vs 28.5 days) without more organ dysfunction or transfusion, although graft take was lower.
Overview

A randomized controlled trial of 36 patients with 10–40% TBSA deep burns compared early excision and grafting (within 7 days) with delayed excision at a tertiary center in North India. The primary outcome was length of stay; secondary outcomes included day-10 SOFA score, wound microbiology, graft take, and transfusion.

Key Findings
  • Early excision reduced median hospital stay to 13.5 vs 28.5 days (p = 0.009); median time to excision was 4.5 vs 30.5 days.
  • Day-10 SOFA score, transfusion requirements, and mortality showed no significant differences between groups.
  • Polymicrobial wound infection occurred in 44.4% vs 5.6% of delayed vs early patients (p = 0.017), although overall culture positivity did not differ (p = 0.092).
  • Graft take during the index admission was lower in the early excision group.
Caveat

With 18 patients per arm, the trial is underpowered for mortality, organ dysfunction, and transfusion, and null findings on these outcomes do not establish equivalence. The delayed arm waited a median of 30.5 days, far longer than many delayed protocols, which may enlarge the length-of-stay difference.

Reconstruction & Microsurgery

8 papers this week

Diagnostic Accuracy of Ultrasound for Localizing Lymphovenous Anastomosis Sites in Lymphedema Surgery.

Preoperative ultrasound correctly identified surgically usable lymphovenous anastomosis sites in about 95% of explored locations, with vessel diameters within roughly 0.1 mm of intraoperative measurements.
Overview

A retrospective analysis of prospectively collected data from 87 patients (109 examinations) assessed preoperative ultrasound mapping of LVA sites in scintigraphically confirmed limb lymphedema, with intraoperative findings as the reference standard. Positive predictive value, Bland-Altman agreement, and examination time were evaluated.

Key Findings
  • Of 285 ultrasound-localized sites selected for surgery, 272 were confirmed intraoperatively, a PPV of 95.4% (95% CI 92.3–97.5).
  • The 13 false positives were independent of tissue thickness, vessel size, depth, and distance (all p > 0.17).
  • Ultrasound diameters showed minimal bias against intraoperative measurement: +0.13 mm for lymphatics and −0.10 mm for veins.
  • Mean total examination time was 34.7 minutes, and per-image analysis time (7.2 minutes) was unrelated to diagnostic accuracy.
Caveat

Only the 285 sites selected for surgery were verified intraoperatively; the other 185 localized sites and any vessels ultrasound missed were never checked. Sensitivity and negative predictive value remain unknown, as does performance outside this experienced single center.

Meta-analysis of adverse outcomes following soft tissue reconstruction of complex open lower limb fractures.

Pooled data from 188 studies suggest that about 8% of flaps for complex open lower limb fractures fail completely, with deep infection or osteomyelitis in about 13% and amputation in about 6% of reconstructed limbs.
Overview

A systematic review and meta-analysis of 188 studies (15,551 patients) pooled proportions of total flap failure, deep infection or osteomyelitis, and amputation after soft tissue reconstruction of complex open lower limb fractures. Of the 10,856 reconstructions, 69.9% were free flaps, and road traffic accidents caused 55.6% of injuries.

Key Findings
  • Pooled total flap failure was 8.0% (95% CI 6.9–9.2) across the 6071 flaps with reported outcomes.
  • Deep infection or osteomyelitis occurred in 12.9% of reconstructed limbs (95% CI 10.6–15.6), the most frequent of the three pooled adverse outcomes.
  • Amputation was required in 6.3% of limbs (95% CI 5.2–7.6) among the 5276 limbs with reported data.
  • Risk of bias was moderate in 64.5% of studies, low in 21.0%, and high in 14.5%.
Caveat

Outcomes were pooled as single-arm proportions across free and local flaps.

Lymphatic Wire-Guided Identification of Proximal Collecting Lymphatic Vessels in Advanced Lower Extremity Lymphedema.

An intraluminal lymphatic guidewire allowed an additional proximal lymphovenous anastomosis in about half of patients with advanced leg lymphedema, and those patients showed greater limb water reduction (13% vs 3%).
Overview

A case series of 21 patients with advanced secondary lower limb lymphedema and limited distal ICG-visible lymphatics underwent LVA with an intraluminal guidewire (LymTracer) advanced proximally under fluoroscopy from a distal functional lymphatic. When the wire traveled at least 10 cm, a second incision and proximal LVA were added.

Key Findings
  • The wire advanced proximally in 11 of 21 patients, enabling anastomosis to previously unvisualized proximal collecting vessels; mean advance was 11.3 ± 10.0 cm.
  • Wire-identified proximal vessels were deeper (13.2 vs 6.2 mm) than conventionally located vessels (p = 0.00009), with similar diameter.
  • Bioimpedance limb water reduction was 13.0% vs 3.0% in patients with versus without an additional proximal LVA (p = 0.03).
Caveat

Groups were defined by whether the wire happened to advance rather than by allocation, and patients with passable proximal lymphatics may have had more preserved lymphatic function at baseline. Whether the greater water reduction reflects the extra anastomosis or this underlying difference remains open.

Short- and Long-term Patency of Prophylactic and Therapeutic Lymphovenous Anastomosis for Extremity Lymphedema: A Systematic Review.

Reported lymphovenous anastomosis patency varies widely, from about one-third to over 90% at both short- and long-term follow-up, with ICG-based studies reporting lower short-term patency than scintigraphy-based ones.
Overview

A systematic review of 13 studies (1089 patients), 12 observational and one randomized, summarized short-term (≤12 months) and long-term (>12 months) patency after therapeutic and prophylactic LVA for extremity lymphedema. Results were synthesized narratively without pooling.

Key Findings
  • Short-term patency after therapeutic LVA ranged from 32% to 93%, and long-term patency from 36% to 97%.
  • Prophylactic LVA showed 80% patency at 18 months, comparable in durability to therapeutic procedures.
  • Studies using indocyanine green lymphography consistently reported lower short-term patency than those using lymphoscintigraphy.
  • Most included studies carried a serious risk of bias, and patency definitions differed between studies.
Caveat

Patency definitions and imaging modalities differed across studies, and modality alone appeared to shift reported rates. How closely any reported patency figure reflects true anastomotic function remains unresolved.

Clinical Practice Guideline of Surgical Treatment of Segmental Bone Defects After Open Tibia Diaphyseal Fracture.

Pooled union rates were similar for bone transport, free vascularized bone grafting, and nonvascularized autograft (95–96%) and lower for the Masquelet technique (81%), while complication rates were highest with free vascularized grafts (94%) and bone transport (82%).
Overview

A meta-analysis of 28 studies (824 patients), combined with Delphi consensus from an orthopedic expert committee, pooled union rate, union time, and complications for Ilizarov bone transport, free vascularized bone grafting, nonvascularized autografting, and the Masquelet technique in post-traumatic segmental tibial diaphyseal defects. The results informed a clinical practice guideline.

Key Findings
  • Pooled union rates were 95–96% for bone transport, vascularized grafts, and autograft, compared with 81% for the Masquelet technique.
  • Complication rates were highest with free vascularized bone grafts (94%), followed by bone transport (82%), Masquelet (53%), and autograft (44%).
  • Mean union time was longest with free vascularized grafts at 37.8 weeks, versus 33.0 weeks for bone transport and about 29.7 weeks for autograft and Masquelet.
  • The consensus panel preferred bone transport and vascularized grafts for large or complex defects, reserving autograft and Masquelet for selected cases, alongside early stabilization and antimicrobial therapy.
Caveat

The vascularized graft and Masquelet arms included only 68 and 67 patients.

Effectiveness of upper extremity lymphaticovenular anastomosis for breast cancer-related trunk lymphedema: Evaluating with a novel subjective scoring system.

Upper extremity LVA was followed by a drop in patient-reported trunk lymphedema symptoms (TuLIP score 16.7 to 10.3 at 6 months), which suggests that arm-level bypass may also relieve trunk symptoms after breast cancer treatment.
Overview

In a case series of 46 patients with breast cancer-related trunk lymphedema, patients who had completed more than 6 months of complex decongestive therapy underwent upper extremity lymphaticovenular anastomosis. Trunk symptoms were scored with the novel TuLIP instrument, and arm outcomes with volume, the body size-adjusted UELI, and LeQOLiS, before surgery and 6 months after.

Key Findings
  • Among the 29 patients with paired assessments, the total TuLIP trunk symptom score fell from 16.7 to 10.3 at 6 months (P = 0.020).
  • Upper extremity volume was not significantly reduced (1125.4 to 1095.8, P = 0.095), although the body size-adjusted UELI decreased slightly from 108.3 to 105.2 (P = 0.040).
  • Arm-related quality of life improved, with total LeQOLiS decreasing from 22.5 to 15.6 (P = 0.005).
Caveat

There was no control group, and only 29 of 46 patients completed the TuLIP assessment at both time points. The trunk improvement therefore cannot be separated from ongoing conservative therapy, natural symptom fluctuation, or selective completion of the assessment.

Patient-Specific Mirrored Planning Leads to Superior Symmetry for Late Post-Traumatic Deformity After Orbital Zygomatic Maxillary Complex Fractures.

Virtual mirrored-image planning for late post-traumatic orbital-ZMC deformity was associated with malar projection closer to the ideal (1.6 vs 4.3 mm deviation) and more consistent orbital volumes than intraoperative visual estimation.
Overview

A comparative cohort of 32 patients with late post-traumatic orbital-zygomaticomaxillary complex deformity was divided equally between virtual mirrored-image planning and traditional intraoperative visual estimation over 12 years. The groups were compared on orbital volume, globe position, malar projection, malar soft-tissue volume, and PROMIS scores.

Key Findings
  • Postoperative deviation from the ideal malar coordinate was smaller with virtual planning (1.6 ± 0.4 mm vs 4.3 ± 3.1 mm).
  • Mean orbital volumes were similar (25.5 vs 26.1 cc), but the traditional group showed greater variability in orbital volume (SD 5.1 vs 1.7 cc) and in globe position.
  • Malar soft-tissue volume improved in both groups, with tighter clustering after virtual planning (102.2 ± 2.8 cc vs 98.2 ± 8.1 cc).
  • PROMIS scores favored virtual planning, with lower anxiety and depression scores (anxiety 56 vs 61; depression 54 vs 59).
Caveat

With 32 patients in two equal groups followed for a mean of 13.1 and 12.7 months, the gains in symmetry and PROMIS scores rest on a small series. Whether they hold over longer follow-up remains open.

Comparative Analysis of Surgical Outcomes in Syndromic Craniosynostosis: Insights from CHOP and CHLA.

Comparing two centers' protocols for syndromic craniosynostosis, the PVDO-first approach involved more major craniofacial operations by age 10 (2.3 vs 1.8) but fewer frontofacial procedures than the FOA-centered approach.
Overview

A retrospective two-center review of 61 patients with Apert, Crouzon, Pfeiffer, Muenke, or Saethre-Chotzen syndromes compared management algorithms at CHOP and CHLA. Outcomes were the type, timing, and number of craniofacial surgeries.

Key Findings
  • All CHOP patients underwent posterior vault distraction osteogenesis at a mean 10.2 months; at CHLA, 36.7% had early PVDO at 3.9 months and all underwent fronto-orbital advancement at 9.6 months.
  • Among the 28 patients aged 10 years or older, CHOP patients had more major procedures but fewer frontofacial procedures in the first decade (2.3 vs 1.8, p = .023; 1.2 vs 1.7, p = .044).
  • In Apert, Crouzon, and Pfeiffer syndromes, CHOP performed midface surgery earlier and more often transcranially (6.0 vs 7.5 years; 61.9% vs 20.8%); midface distraction used external devices at CHOP and internal devices at CHLA.
Caveat

The study compares the type, timing, and number of operations, which describe treatment burden rather than functional, intracranial pressure, airway, or aesthetic results. It leaves open which protocol actually serves patients better.

Hand & Peripheral Nerve

7 papers this week

A Prospective Randomized Comparison of Median and Ulnar Fascicle Transfers to the Biceps Motor Branch in Upper Brachial Plexus Injury.

Median and ulnar fascicle transfers to the biceps motor branch produced similar rates of antigravity elbow flexion (87% vs 78%), which suggests the median nerve is a reasonable alternative donor in upper brachial plexus injury.
Overview

A randomized trial of 33 analyzed patients (50 enrolled) with C5–C6 or C5–C7 brachial plexus injuries compared ulnar nerve fascicle transfer (n = 18) with median nerve fascicle transfer (n = 15) to the biceps motor branch. The primary outcome was elbow flexion against gravity.

Key Findings
  • Elbow flexion against gravity was achieved in 14 of 18 ulnar-transfer patients and 13 of 15 median-transfer patients (78% vs 87%, P = .665).
  • Intraoperative stimulation overrode the randomized donor in 12 of 50 patients because one nerve was clearly stronger, and 5 more were excluded for less than 6 months of follow-up.
Caveat

With 33 patients analyzed and about a third of those enrolled excluded after randomization, the trial cannot establish equivalence. A clinically meaningful difference between the donors remains possible.

Restoration of Wrist Extension in Patients With Brachial Plexus Birth Injuries by Transfer of Two Flexor Digitorum Superficialis Tendons.

In children with residual brachial plexus birth injury, transfer of two FDS tendons was followed by wrist extension with power grip (M4) in 89%, with more reliable gains when preoperative strength was already M3.
Overview

A retrospective series of 73 patients aged 4–16 years with residual brachial plexus birth injury underwent transfer of two flexor digitorum superficialis tendons to restore wrist extension between 2008 and 2024. Postoperative wrist extension strength was graded on the MRC scale over a mean follow-up of 45 months.

Key Findings
  • After transfer, 89% of patients achieved M4 wrist extension, meaning extension against resistance with power grip.
  • Transfers routed through the interosseous membrane and patients with preoperative M3 wrist extension had higher-than-expected rates of postoperative M4 strength; the tendon route and metacarpal insertion site changed over the study period.
  • Reported complications included swan neck deformity, ulnar or radial deviation, and supination or pronation contractures.
Caveat

There was no comparison group, and the technique changed over 16 years. Claims of outcomes comparable or superior to other transfers rest on literature benchmarks, and it remains unclear which technical variant drives the results.

Predictors of Complications and the Role of Early Revision in Reverse-Flow Posterior Interosseous Artery Flaps: A Multivariable Analysis of 110 Cases.

Longer reverse-flow posterior interosseous artery flaps were more prone to venous congestion and flap loss, with 9 cm emerging as a practical warning threshold, and early revision of congested flaps was associated with less flap loss.
Overview

A retrospective cohort of 110 patients underwent pedicled reverse-flow posterior interosseous artery flap reconstruction of the hand and wrist between 2010 and 2025. Multivariable logistic regression identified predictors of venous congestion, flap loss, and donor-site grafting, and early revision was compared with conservative management of venous compromise.

Key Findings
  • Venous congestion occurred in 27.3% of patients, with total flap loss in 4.5% and partial flap loss in 13.6%.
  • Flap length independently predicted venous congestion (OR 1.45, 95% CI 1.17–1.79) and flap loss (OR 1.47, 95% CI 1.17–1.85); ROC analysis placed a practical threshold at 9 cm, with high specificity but modest sensitivity.
  • Traumatic etiology independently predicted donor-site grafting (OR 8.00, 95% CI 2.20–29.03), whereas flap width greater than 4 cm was only borderline after adjustment (OR 1.60, p = 0.059).
  • Among patients with venous congestion, early revision was associated with lower flap loss than conservative management (43.75% vs 92.86%, p = 0.007).
Caveat

The early-revision comparison involves about 30 congested flaps managed by surgeon choice rather than allocation. Flaps judged more salvageable may have been preferentially selected for revision.

A Comparative Analysis of Surgical Treatment for First Carpometacarpal Osteoarthritis: A Systematic Review and Pooled Analysis of Randomized Controlled Trials.

Pooled RCT data suggest dual-mobility implants give larger early pain relief than reconstructive or non-reconstructive procedures for thumb CMC osteoarthritis (VAS reduction 6.05 vs 3.52 and 2.86 at 3 months), with pain and function comparable by 12 months.
Overview

A systematic review and pooled analysis of 7 RCTs (409 hands) indirectly compared reconstructive, non-reconstructive, and dual-mobility implant procedures for first carpometacarpal osteoarthritis. Outcomes were VAS pain, DASH, grip and pinch strength, and complications at 3 and 12 months.

Key Findings
  • At 3 months, VAS pain fell most with dual-mobility implants (Δ = 6.05), compared with reconstructive (Δ = 3.52) and non-reconstructive procedures (Δ = 2.86).
  • DASH scores improved in all groups and most with implants (Δ = 29.48 at 3 months; Δ = 35.35 at 12 months), although 12-month pain and function were comparable overall.
  • Grip and pinch strength results varied between groups, with implants showing the greatest lateral pinch gain at 12 months.
  • Complication rates were 20.61% for reconstructive procedures, 24.49% for implants, and 51.61% for non-reconstructive procedures, though the last figure comes from a single study.
Caveat

The groups were compared indirectly across separate trials rather than head to head. Differences in patient selection, baseline severity, and trial design may account for the early implant advantage.

Outcomes of concomitant lacertus release and carpal tunnel release in patients with double crush syndrome: A cohort study.

Combined lacertus and carpal tunnel release in 51 patients with clinical double crush syndrome was followed by symptom improvement, return to work at about five weeks, and 73% patient satisfaction at three months.
Overview

In a cohort study of 51 patients with clinically diagnosed double crush syndrome, median nerve compression at both the lacertus fibrosus and the carpal tunnel was treated with concomitant single-stage release. Symptoms, return to work, and satisfaction were assessed at three months.

Key Findings
  • Concomitant lacertus and carpal tunnel release improved symptoms.
  • Return to work took five weeks.
  • At three months, 73% of patients were satisfied with treatment.
Caveat

In this cohort of 51 patients with clinically diagnosed double crush syndrome, satisfaction was assessed three months after combined release. Whether symptom relief and satisfaction are durable over the longer term remains open.

Scratch Collapse Test and Patient-Reported Outcomes After Lower Extremity Nerve Decompression Surgery.

In 45 patients undergoing lower extremity nerve decompression, the scratch collapse test was positive in every case compared with 84% for Tinel's sign, suggesting it is feasible as a bedside localization aid, although its diagnostic accuracy was not tested.
Overview

A retrospective review of 45 consecutive patients undergoing lower extremity nerve decompression (LEND) assessed whether the scratch collapse test (SCT) could localize common and uncommon compression sites, and compared it with Tinel's sign. Postoperative functional outcomes and patient-reported outcomes (VAS, Patient Satisfaction Scale, Norfolk QOL-DN, LEFS, MNSI) were described.

Key Findings
  • Ten compression sites were identified, most often the common peroneal (42.2%), superficial peroneal (37.8%), and tibial (28.9%) nerves; the SCT was positive in all 45 patients, compared with 38 (84.4%) for Tinel's sign.
  • After surgery, sensory deficits improved in 73.3% of patients, whereas muscle weakness improved in only 35.6%.
  • Among the 10 patients with paired clinical pain scores, mean pain fell from 8.9 ± 1.8 to 4.3 ± 3.5 (p = 0.003).
  • Postoperative PROMs were available for only 18 patients (40.0%), with a mean VAS of 4.8 ± 2.8, Patient Satisfaction Scale of 3.6 ± 1.6, and LEFS of 47.5 ± 24.5.
Caveat

The SCT was positive in every patient, and there was no control group or independent reference standard. Its sensitivity and specificity remain unknown, as does how often it would be positive in patients without a true compression.

Outcomes of the Surgical Management of Clinodactyly: A Systematic Review.

Across 8 small studies, physiolysis and osteotomy for congenital clinodactyly both reduced mean angulation from 41° to 21° with a 7.3% complication rate, but no study used validated patient-reported outcome measures.
Overview

A systematic review of 8 studies (119 patients, 165 digits) evaluated outcomes of surgery for congenital clinodactyly, comparing physiolysis (76% of cases) with osteotomy (24%). Risk of bias was assessed with the Newcastle-Ottawa Scale, and outcomes were synthesized descriptively.

Key Findings
  • Mean angulation improved from 41° preoperatively to 21° after surgery, and every technique produced angular improvement; mean age was 6.1 years for physiolysis and 7.2 years for osteotomy.
  • The overall complication rate was 7.3%, and reoperation was required in 9% of cases, most often after physiolysis.
  • Surgical thresholds varied between studies, with some citing more than 20° to 25° as an indication, and there were no clear criteria for choosing physiolysis over osteotomy.
  • No included study used validated PROMs; limited qualitative feedback suggested high patient or parental satisfaction despite residual deformity.
Caveat

The evidence comes from 8 small, heterogeneous studies with inconsistent definitions of success and no pooled analysis. The higher reoperation rate after physiolysis cannot be separated from differences in patient age, deformity severity, or length of follow-up.

Burns & Wounds

8 papers this week

Impact of early excision in acute burns: A randomized controlled trial from a tertiary centre in North India.

In a small randomized trial from North India, excision within 7 days roughly halved median hospital stay (13.5 vs 28.5 days) without more organ dysfunction or transfusion, although graft take was lower.
Overview

A randomized controlled trial of 36 patients with 10–40% TBSA deep burns compared early excision and grafting (within 7 days) with delayed excision at a tertiary center in North India. The primary outcome was length of stay; secondary outcomes included day-10 SOFA score, wound microbiology, graft take, and transfusion.

Key Findings
  • Early excision reduced median hospital stay to 13.5 vs 28.5 days (p = 0.009); median time to excision was 4.5 vs 30.5 days.
  • Day-10 SOFA score, transfusion requirements, and mortality showed no significant differences between groups.
  • Polymicrobial wound infection occurred in 44.4% vs 5.6% of delayed vs early patients (p = 0.017), although overall culture positivity did not differ (p = 0.092).
  • Graft take during the index admission was lower in the early excision group.
Caveat

With 18 patients per arm, the trial is underpowered for mortality, organ dysfunction, and transfusion, and null findings on these outcomes do not establish equivalence. The delayed arm waited a median of 30.5 days, far longer than many delayed protocols, which may enlarge the length-of-stay difference.

Prehospital fluid resuscitation in patients with severe burns - A nationwide cohort study.

In 884 patients with severe burns from Japan's nationwide trauma registry, prehospital fluid administration was not significantly associated with 48-hour or in-hospital mortality after propensity weighting, despite higher crude death rates in the fluid group.
Overview

A retrospective nationwide registry cohort of 884 patients with severe burns (≥20% TBSA, or ≥10% in children under 5) transported directly from the scene in Japan between 2019 and 2023 compared outcomes with and without prehospital fluid administration. Confounding was addressed with stabilized inverse probability weighting based on propensity scores, and 48-hour all-cause mortality was the primary outcome.

Key Findings
  • Prehospital fluid was given to only 94 patients (10.6%), while the remaining 790 were transported without fluid administration.
  • Crude mortality was higher in the fluid group, with 48-hour death in 23.4% versus 13.4% and in-hospital death in 44.7% versus 28.4%.
  • After weighting, prehospital fluid was not significantly associated with mortality, with odds ratios of 0.88 (95% CI 0.32–2.39) for 48-hour death and 1.30 (95% CI 0.75–2.25) for in-hospital death.
Caveat

With only 94 exposed patients and wide confidence intervals, the study cannot exclude a clinically meaningful benefit or harm. Unmeasured reasons paramedics chose to give fluid, such as perceived instability, may also persist despite propensity weighting.

Accuracy of burn size estimation in referred patients: A comparison between referring units and a Swedish National Burn Centre.

Referring physicians overestimated burn size in 76% of 82 patients referred to a Swedish national burn center, and the error grew as burns got larger.
Overview

A cross-sectional study of 82 referred patients at a Swedish national burn center in Linköping compared real-time TBSA% estimates by referring non-expert physicians with burn specialist assessments using the Lund & Browder chart. Agreement was evaluated with Bland-Altman analysis, and predictors of discrepancy with multivariable linear regression.

Key Findings
  • Non-experts overestimated TBSA% in 76% of cases, with a median estimate of 10% versus 6% for specialists (p < 0.001).
  • Bland-Altman analysis showed proportional bias, with discrepancies widening as burn size increased.
  • Larger discrepancies were predicted by more than 2 non-confluent burn spots (β = 2.525), larger burns, male patients, and a longer interval between assessments.
  • The presence of deep burns was associated with smaller discrepancies (β = −3.422, p < 0.001) between non-expert and specialist estimates.
Caveat

Specialist estimates were made later than referral estimates, and a longer interval between the two independently predicted larger discrepancy. Part of the gap may reflect wound evolution or cleaning between assessments rather than estimation error alone.

A 360° virtual reality tool to reduce opioid consumption, pain, and anxiety during dressing changes after burn surgery - A randomized controlled trial.

In a randomized trial of 82 burn patients, adding passive 360° virtual reality to multimodal analgesia during post-autograft dressing changes did not reduce opioid use, pain, or anxiety, although most participants found it acceptable.
Overview

A randomized controlled trial of 82 patients compared passive 360° immersive virtual reality (VR) plus standard multimodal analgesia with multimodal analgesia alone during dressing changes after burn autograft surgery. The primary outcome was cumulative peri-procedural opioid consumption over the first two dressing changes; secondary outcomes were pain, anxiety, and satisfaction.

Key Findings
  • Passive VR produced no significant reduction in opioid consumption, the primary outcome, compared with multimodal analgesia alone across the first two dressing changes.
  • Secondary outcomes showed no between-group difference in numeric pain or anxiety scores during dressing changes.
  • Acceptability was high, with 37 of 41 VR participants stating they would recommend immersive VR for patient care (31 highly and 6 slightly agreeing), particularly for anxiety reduction.
Caveat

Only passive, observe-only VR was tested. Whether interactive VR, which earlier studies link to lower pain during burn dressing changes, would reduce opioid use remains untested in this design.

Second-Window Indocyanine Green fluorescence imaging differentiates inflammation from necrotic tissue in early burn wounds.

In a mouse burn model, second-window indocyanine green imaging showed distinct fluorescence patterns in necrotic versus inflamed tissue, suggesting potential for objective guidance of burn excision, although the authors note further optimization is needed before clinical use.
Overview

A preclinical mouse model study evaluated whether second-window indocyanine green (SWIG) imaging, which relies on delayed ICG retention through the enhanced permeability and retention effect, can distinguish necrotic from inflamed tissue in early burn wounds. ICG angiography was used to characterize perfusion and permeability over time in burned tissue and in lipopolysaccharide (LPS)-induced non-burn inflammation.

Key Findings
  • SWIG showed distinct fluorescence properties that differentiated inflamed from necrotic tissue in the mouse burn model.
  • Early burn hyperperfusion and increased permeability enhanced ICG delivery to the wound bed, providing the substrate for SWIG imaging.
  • In LPS-induced inflammation, ICG fluorescence varied with the inflammatory mechanism, independent of the necrosis-avid behavior of ICG, a signal that will need to be separated from necrosis-specific uptake.
Caveat

The findings come from a mouse model, and permeability-driven signal is not yet separable from necrosis-specific signal. Whether SWIG can reliably guide excision depth in human burns, where inflammation and necrosis coexist, remains untested.

The impact of amputation on psychiatric outcomes after burn injury.

In a propensity-matched TriNetX cohort of 4,722 burn patients, amputation was associated with about double the 6-month risk of new anxiety, along with higher depression and antidepressant initiation persisting through 2 years and greater risk after proximal amputation.
Overview

A propensity-matched retrospective cohort of 4,722 adults (2,361 amputees and 2,361 non-amputees) with burn injury from the TriNetX network compared new-onset psychiatric diagnoses at 6 months, 1 year, and 2 years. Matching covered demographics, comorbidities, substance use, psychiatric history, antidepressant use, and burn extent, with secondary analyses of opioid use, mental health service use, and amputation level.

Key Findings
  • At 6 months, amputees had higher rates of anxiety (11.0% vs 5.6%, HR 2.06), depression (HR 1.75), and adjustment disorder (HR 2.59), each persisting through 2 years after multiple-comparison correction.
  • Antidepressant initiation was higher among amputees (19.4% vs 11.2%, HR 1.73), while psychotherapy use (9.4% vs 5.5%) ran at under half the rate of antidepressant initiation.
  • Opioid use was higher at every interval (81.5% vs 58.0% at 6 months, HR 1.92); PTSD was elevated through 1 year and substance use disorder at 6 months only, while sleep disorders and suicidal ideation did not differ.
  • Proximal amputation carried roughly twice the 6-month incidence of anxiety and adjustment disorder seen after distal amputation, a difference persisting through 2 years.
Caveat

Amputees likely had more severe injuries, longer hospitalizations, and more health-system contact than matched controls despite adjustment for burn extent, which could raise both true psychiatric morbidity and the chance of a coded diagnosis. The share attributable to amputation itself remains unresolved.

Microcirculatory response to fluid resuscitation in severe burns.

In 22 adults with major burns, sublingual microcirculatory imaging showed declining capillary density over the first 24 hours of resuscitation even as blood pressure, urine output, and lactate remained at target.
Overview

A prospective observational study of 22 adults with burns of at least 15% TBSA used serial sublingual incident dark field (IDF) imaging at baseline and 4, 8, 12, and 24 hours, together with plasma endothelial biomarkers (syndecan-1, glypican-1, ICAM-1, VE-cadherin), to track tissue perfusion during early resuscitation. Lactated Ringer's was started at 3 mL/kg/%TBSA and titrated to urine output and hemodynamics.

Key Findings
  • Total and functional capillary density decreased significantly over 24 hours, whereas the proportion of perfused vessels and red blood cell velocity increased (both p < 0.01).
  • These changes occurred despite stable conventional endpoints: mean arterial pressure was stable, urine output was maintained at 0.8 mL/kg/h, and lactate did not change.
  • Glypican-1 and VE-cadherin decreased over time while syndecan-1 remained stable, consistent with endothelial alteration without clear evidence of ongoing glycocalyx shedding.
  • Patients received a mean of 4.0 ± 1.8 mL/kg/%TBSA; high fluid exposure above 5 mL/kg/%TBSA (21.1% of patients) was not associated with improved tissue perfusion.
Caveat

Whether sublingual capillary density would improve with perfusion-guided resuscitation remains unknown in this small sample observed for only 24 hours.

Non-recreational burn injuries are associated with worse pain interference and social integration: a Burn Model System Database Study.

Among employed adult burn survivors, how the burn happened did not affect employment at 12 months, but work-related and other non-recreational burns were associated with worse pain interference or social reintegration than recreational burns.
Overview

This longitudinal database cohort of 2117 employed adult burn survivors from the Burn Model System (2015–2024) grouped patients by injury circumstance: work-related, recreational, or non-work/non-recreational. Employment status and patient-reported pain, anxiety, depression, fatigue, physical function, and social reintegration were compared at 12 months.

Key Findings
  • After adjustment, there was no difference in 12-month employment for recreational injuries compared with work-related (OR 0.91, p = 0.62) or non-work/non-recreational injuries (OR 1.02, p = 0.73).
  • Work-related burns, which made up 34.7% of the cohort, were associated with greater pain interference at 12 months than recreational burns (p = 0.02).
  • Both the work-related (p = 0.03) and non-work/non-recreational (p = 0.02) cohorts reported more difficulty with social reintegration than the recreational cohort, independent of injury severity.
Caveat

The recreational comparison group was small (11.1%), and injury circumstance was observed rather than assigned. Residual differences between the groups, beyond injury severity, could account for the pain and social reintegration gaps.

Breast

8 papers this week

Systematic review and meta-analysis on the diagnostic accuracy of indocyanine green angiography for skin viability assessment: Evaluation in post-mastectomy flaps.

Pooled data suggest that ICG angiography is good at ruling out mastectomy skin flap necrosis (negative predictive value 94.7–97.1%) but poor at predicting it, with a positive predictive value of 21.3%.
Overview

This systematic review and meta-analysis of 12 studies (10 pooled, all in post-mastectomy skin flaps) assessed the diagnostic accuracy of indocyanine green angiography against postoperative clinical necrosis. It compared absolute and relative perfusion quantification and derived cut-off values.

Key Findings
  • Absolute perfusion thresholds (6 studies) yielded a pooled sensitivity of 85.1% and specificity of 61.4%, with an AUC of 0.77.
  • Relative perfusion (5 studies) performed slightly worse, with pooled sensitivity of 68.4% and specificity of 69.1% (AUC 0.74) and a wide sensitivity confidence interval (32.2–90.8%).
  • At the observed necrosis rate of 10.9%, pooled negative predictive value was high (94.7–97.1%), whereas positive predictive value was only 21.3%.
  • The analysis identified cut-off values of 18.3 for absolute perfusion and 31.7% for relative perfusion for predicting skin necrosis.
Caveat

Each quantification method is pooled from only five or six studies with wide confidence intervals. Absolute fluorescence values also vary with camera system and dye protocol, so it is unknown how well the 18.3 threshold transfers between centers.

Support or Simplicity: Evaluating Mesh Use in Two-Stage Prepectoral Breast Reconstruction.

In this multicenter cohort, mesh in prepectoral two-stage reconstruction was associated with more complications (18.2% vs 12.9%), driven mainly by infection, without lower reconstructive failure or revision rates.
Overview

This multicenter retrospective cohort of 948 patients (1,592 reconstructions) undergoing immediate prepectoral two-stage expander reconstruction (2016–2025) compared outcomes with versus without mesh at expander placement. Logistic regression assessed predictors of complications, reconstructive failure, and secondary revision.

Key Findings
  • Mesh was used in 84.4% of reconstructions, and complications were more frequent with mesh (18.2% vs 12.9%) (p = 0.039), mainly because of infection (8.7% vs 4.8%).
  • On multivariable analysis, mesh was associated with higher odds of complication (OR 1.574, 95% CI 1.047–2.437) but not with reconstructive failure (OR 1.222, 95% CI 0.684–2.181).
  • Secondary revision rates did not differ between cohorts (21.5% vs 24.4%, p = 0.333), and mesh was not protective against revision (OR 1.165, 95% CI 0.821–1.653).
Caveat

Mesh was the default in 84.4% of reconstructions, so the no-mesh group was small and probably chosen by surgeon preference or flap quality in ways regression may not fully capture. It remains unproven that mesh itself causes the excess infections.

Impact of Prior Implant-Based Reconstruction and Radiotherapy on Microvascular Outcome in Deep Inferior Epigastric Perforator Flap Breast Reconstruction.

Among irradiated patients, prior implant reconstruction was associated with about twice the rate of perioperative re-anastomosis in delayed DIEP flaps (14.7% vs 7.4%), without a detectable increase in flap necrosis.
Overview

This single-center retrospective cohort of 516 women (577 DIEP flaps) undergoing delayed reconstruction (2005–2022) was grouped by history of implant-based reconstruction (IBR) and radiotherapy. Perioperative microvascular re-anastomosis and 30-day flap necrosis were compared using logistic regression adjusted for age, BMI, and smoking.

Key Findings
  • Of 577 flaps, 213 followed prior IBR and 441 followed radiotherapy; among irradiated patients, re-anastomosis was more frequent after prior IBR than after mastectomy alone (14.7% vs 7.4%, p = 0.013).
  • After adjustment, prior IBR in irradiated patients carried nearly twofold odds of re-anastomosis (OR 1.98, 95% CI 1.04–3.76).
  • Rates of partial or total flap necrosis did not differ across groups, and prior IBR was not significantly associated with necrosis (OR 2.17, 95% CI 0.84–5.62).
  • Venous coupler size was smaller in irradiated than non-irradiated patients (2.03 vs 2.32 mm, p < 0.001).
Caveat

The odds of flap necrosis after prior IBR were more than doubled (OR 2.17) but with a wide confidence interval (0.84–5.62). The study may have been too small to detect a clinically relevant increase in flap loss.

Long-term oncological outcomes after nipple-sparing mastectomy and implant-based immediate breast reconstruction in a population-based cohort of breast cancer patients.

In this Stockholm population-based cohort, nipple-sparing mastectomy was associated with a higher 12-year local recurrence rate than skin-sparing mastectomy (14.1% vs 3.7%), with no detectable difference in overall survival.
Overview

This population-based retrospective cohort of 1537 women with primary breast cancer and implant-based immediate reconstruction in Stockholm (2005–2015) compared local recurrence and overall survival after nipple-sparing (218 breasts) versus skin-sparing mastectomy (1376 breasts), with up to 12 years of follow-up.

Key Findings
  • Local recurrence occurred in 50 breasts (13 NSM, 37 SSM), with a 12-year cumulative incidence of 14.1% after NSM vs 3.7% after SSM (P = 0.001).
  • The association held after multivariable adjustment (HR 2.08, 95% CI 1.01–4.28; unadjusted HR 3.18), and 4 of the 13 NSM recurrences (30.8%) arose in or beneath the nipple-areola complex.
  • Overall survival did not differ significantly between NSM and SSM (HR 0.74, 95% CI 0.38–1.44).
  • NSM use rose from 7.6% to 26.6% between 2005–2007 and 2014–2015 (P < 0.001), and median follow-up was shorter after NSM (60 vs 75 months).
Caveat

The adjusted estimate rests on only 13 recurrences after NSM, and the lower confidence bound is 1.01. In this nonrandomized cohort, residual confounding cannot be ruled out.

Association of Neoadjuvant Versus Adjuvant Chemotherapy on Pre-Pectoral Tissue Expander Based Reconstruction Outcomes Following Mastectomy.

In this single-center series, neoadjuvant chemotherapy was not associated with more major complications after immediate prepectoral expander placement (14.1%, vs 28.5% without chemotherapy), whereas adjuvant chemotherapy had the highest rate (41.8%).
Overview

This single-center retrospective review of 295 patients undergoing immediate two-stage prepectoral tissue expander reconstruction (2018–2022) compared outcomes after neoadjuvant, adjuvant, or no chemotherapy, with perioperative leukopenia analyzed separately. Major complications were modeled with multivariable mixed-effects logistic regression.

Key Findings
  • After expander placement, major complications occurred in 14.1% with NACT, 41.8% with ACT, and 28.5% without chemotherapy (p = 0.0012).
  • After implant exchange, the chemotherapy groups showed no significant differences in individual complications or outcomes.
  • Perioperative leukopenia was associated with lower major infection rates but higher hematoma rates after expander placement (p < 0.05).
  • After implant exchange, patients with leukopenia had lower explantation rates but higher reoperation and skin necrosis rates (p < 0.05).
Caveat

Chemotherapy timing was not randomized in this retrospective review, and it remains possible that the lower complication rate with NACT reflects patient selection rather than an effect of treatment timing.

The Impact of Tumescent Local Anesthesia on Opioid Use in DIEP Flap Breast Reconstruction.

Adding bupivacaine tumescent local anesthesia to DIEP reconstruction was associated with about 29 fewer inpatient morphine milligram equivalents, smaller discharge prescriptions, and a half-day shorter stay than a TAP block alone.
Overview

This retrospective cohort of 481 DIEP flap patients (2019–2023) compared tumescent local anesthesia with bupivacaine, given as TAP, intercostal, and local infiltration at the breast and abdominal sites (n = 271), against a standard TAP block alone (n = 210). Opioid use, length of stay, and complications were analyzed with multivariable regression.

Key Findings
  • Inpatient opioid use was 29.4 MME lower with TLA (95% CI -45.29 to -13.45), and discharge prescriptions were 36.1 MME lower (95% CI -58.27 to -13.98).
  • Hospital stay was shorter with TLA (3.4 vs 3.9 days) (p < 0.001).
  • Breast hematoma was less frequent with TLA (2.2% vs 6.2%) (p = 0.033).
  • Baseline imbalances were present: TLA patients were younger (50.3 vs 53.7 years), and controls more often had hormonal therapy (43.8% vs 34.7%) and prior radiation (52.9% vs 39.1%).
Caveat

Patients were not randomized, and the cohorts differed in age, radiation, and hormonal therapy. Part of the opioid and length-of-stay reduction may reflect other practice changes over 2019–2023 rather than the tumescent technique itself.

Reducing surgical site infection in implant-based breast reconstruction: Impact of preoperative Staphylococcus aureus screening and decolonisation.

Preoperative nasal Staphylococcus aureus screening with decolonization of carriers was associated with roughly 40% lower odds of surgical site infection within 12 months of breast implant placement (OR 0.59).
Overview

This single-center retrospective cohort of 738 patients (1385 implants) receiving breast implants (2018–2023) assessed whether preoperative nasal Staphylococcus aureus screening, with decolonization of carriers, was associated with 12-month surgical site infection. Generalized estimating equations accounted for multiple implants per patient.

Key Findings
  • Screening was performed before 73.9% of procedures, and the overall 12-month surgical site infection incidence was 5.8% (95% CI 4.7–7.2).
  • Screening was independently associated with reduced infection risk (OR 0.59, 95% CI 0.35–0.98) on multivariable analysis.
  • Obesity and reconstruction type were associated with infection (p < 0.001); compared with implant mastopexy or implant exchange, immediate reconstruction carried higher odds of infection (OR 2.61, 95% CI 1.62–4.22), whereas delayed reconstruction did not (OR 0.67).
Caveat

Screening was offered rather than randomized. The benefit may reflect decolonization itself or systematic differences between screened and unscreened procedures.

Associations of Deep Inferior Epigastric Perforator Flap Weight with Postoperative Complications and Revisions.

Heavier DIEP flaps were associated with more complications mainly in patients with BMI 30–35 (overall complications OR 1.17, fat necrosis OR 1.27, dehiscence OR 1.29), with inconsistent associations in other BMI groups.
Overview

A retrospective two-site cohort of 757 patients (757 oncologic DIEP flaps, 2017–2024) examined whether flap weight was associated with postoperative complications, using adjusted logistic regression stratified by BMI (<25, 25–30, 30–35, >35 kg/m2) over a mean follow-up of 9.6 months.

Key Findings
  • BMI correlated strongly with flap weight (r = 0.79), and both were associated with overall complication rates (P < 0.001 for each).
  • Within the BMI 30–35 group, flap weight was associated with higher adjusted odds of overall complications (OR 1.17), minor complications (OR 1.18), fat necrosis (OR 1.27), and wound dehiscence (OR 1.29).
  • Outside that stratum, associations were isolated: heavier flaps were linked to skin necrosis in the BMI <25 group (OR 2.31) and to hematoma in the BMI 25–30 group (OR 1.37).
  • Further stratification by flap weight showed trends toward more minor complications, skin necrosis, and dehiscence, but associations were inconsistent across strata.
Caveat

Flap weight and BMI are tightly correlated, and many complication types were tested across four BMI bands, so the scattered subgroup associations may reflect residual confounding or multiple comparisons rather than an independent weight effect.

Aesthetic

8 papers this week

Impact of GLP-1 Agonists on Post-Operative Outcomes in Aesthetic & Body Contouring Surgery: A Systematic Review & Meta-Analysis.

Pooled observational data suggest GLP-1 receptor agonist exposure is associated with more delayed wound healing and hypertrophic scarring after aesthetic and body contouring surgery, but fewer seromas than in post-bariatric patients.
Overview

A systematic review and meta-analysis of 12 studies (29,357 patients) compared postoperative outcomes of aesthetic and body contouring surgery with versus without GLP-1 receptor agonist exposure, with 10 studies entering random-effects pooling. Outcomes included infection, dehiscence, delayed healing, hypertrophic scarring, seroma, hematoma, and venous thromboembolism.

Key Findings
  • GLP-1 receptor agonist exposure was associated with an increased risk of delayed wound healing in pooled observational analyses.
  • Hypertrophic scarring was also more frequent with GLP-1 receptor agonist exposure, the second outcome with a pooled adverse association.
  • In subgroup analysis against patients with prior bariatric surgery, GLP-1 receptor agonist users had lower seroma rates.
Caveat

All pooled data are observational, and users may differ from controls in weight-loss magnitude and comorbidity. Whether the healing signal reflects the drug itself or the rapid weight loss and nutritional state it produces remains open.

Redefining Limits: A Clinical Trial on the Safety of Combining Liposuction with Undermining During Abdominoplasty.

This three-arm trial suggests that adding wide undermining to abdominal flap liposuction does not raise complication rates, and that liposuction rather than undermining width drives flap thinning and aesthetic improvement.
Overview

A three-arm randomized trial compared lipoabdominoplasty with limited undermining, traditional abdominoplasty with wide undermining and no flap liposuction, and a combined technique with wide undermining plus flap liposuction. Outcomes included epigastric pinch thickness, horizontal laxity, operative time, aesthetic results, and complications.

Key Findings
  • Complication rates showed no significant differences across individual groups, between liposuction and no-liposuction arms, or between limited and wide undermining.
  • Liposuction, with or without wide undermining, reduced epigastric pinch thickness more and was associated with better aesthetic outcomes.
  • Undermining extent had no significant effect on flap thickness, horizontal skin laxity, or overall aesthetic results.
  • The combined technique had the longest operative time, attributed to extensive dissection, sub-Scarpa fat removal, and liposuction.
Caveat

The absence of significant differences in complications does not establish equivalent safety between techniques.

Breast Implant Flipping: Prevalence, Clinical Correlation, and Independent Risk Factors in a Consecutive Ultrasound Cohort.

In-office ultrasound identified anterior-posterior flipping of silicone breast implants in 12.7% of patients (about one in eight), with larger implant volume, prepectoral placement, and lack of soft tissue support independently associated with flipping.
Overview

A prospective consecutive cohort of 590 patients with silicone breast implants underwent in-office high-resolution ultrasound at routine follow-up across 7 US sites over 4 months, to estimate the prevalence of implant flipping and identify device, pocket, and patient factors associated with it.

Key Findings
  • Implant flipping, with the posterior patch rotated anteriorly, was detected in 75 of 590 patients (12.7%).
  • Larger implant volume, prepectoral placement, and lack of soft tissue support were independently associated with flipping.
  • The cohort comprised 64.6% primary and 35.4% revision augmentations, with mean age 43 years, mean BMI 23, and devices from Allergan (63.9%), Motiva (15.9%), Mentor (12.4%), and Sientra (7.1%).
Caveat

The 12.7% prevalence was measured among consecutive patients presenting for routine follow-up at 7 US sites, a group that may differ from implant patients who no longer return to their surgeons. How often flipping occurs across all patients with silicone implants remains open.

GLP-1 receptor agonist use and postoperative complications after body contouring surgery following massive weight loss.

Preoperative GLP-1 receptor agonist exposure was associated with about 3.7-fold higher odds of infection after body contouring following massive weight loss, compared with lifestyle-induced weight loss, despite standard preoperative optimization.
Overview

A retrospective single-center cohort of 282 adults undergoing body contouring after massive weight loss (Aalborg, Denmark, 2022–2025) compared complications by weight-loss modality (lifestyle, bariatric surgery, or GLP-1 RA), adjusting for age, sex, BMI, ASA class, diabetes, and procedure type.

Key Findings
  • Compared with lifestyle weight loss, GLP-1 RA exposure was independently associated with postoperative infection (OR 3.72, 95% CI 1.52–9.07).
  • GLP-1 RA exposure was also associated with wound dehiscence requiring repair under general anesthesia (OR 16.71), with a very wide 95% CI of 1.99–139.88.
  • No association was found for dehiscence managed under local anesthesia or for bleeding, and prior bariatric surgery was not associated with any investigated complication.
Caveat

The very wide confidence interval for dehiscence points to few events in a retrospective single-center cohort. How large the risk is, and whether it reflects the drug itself or the patients who were treated with it, remains open.

A Composite Internal Stabilization Strategy associated with Absence of Postoperative Hematoma After Facelift: A 561-Patient Comparative Series.

A drain-free internal suture network combining progressive tension and quilting sutures was associated with no hematomas requiring evacuation in 356 facelifts, compared with 5.9% in an earlier cohort treated with conventional techniques and drains.
Overview

A retrospective comparative cohort of 561 patients compared 356 consecutive facelifts using an internal hemostatic network (progressive tension plus quilting sutures, without drains or compressive dressings; 2018–2025) with 205 historical controls who had SMAS plication or SMASectomy with suction drains (2011–2017).

Key Findings
  • There were no hematomas requiring surgical evacuation in the network group versus 12 (5.9%) in controls (p < 0.00001); three network patients (0.8%) had small collections managed by aspiration.
  • Transient facial nerve weakness occurred in 10.4% of network patients, predominantly marginal mandibular, with complete recovery at a mean of 7 weeks and no permanent deficits.
  • No seromas or flap necrosis occurred in the network group, and all patients were discharged the same day (mean stay 5 hours).
Caveat

Controls were operated on in an earlier era with different SMAS techniques, so gains in surgeon experience, perioperative blood pressure management, and patient selection over time cannot be separated from the effect of the suture network.

Surgical Management of Intractable Lower Eyelid Filler Induration: A 15-Year Experience and Layer-by-Layer Approach.

Systematic layer-by-layer excision of lower eyelid filler granulomas resolved complaints without surgical recurrence in all 282 patients, although transient ectropion affected 61.7% of high-risk patients despite prophylactic canthal support.
Overview

A retrospective series of 282 patients (2011–2026) describes subciliary excision of intractable lower eyelid granulomas from non-biodegradable fillers after at least 6 months of failed medical management, using sequential layer-by-layer delamination with release of the orbital retaining and tear trough ligaments.

Key Findings
  • Clinical success, defined as resolution of preoperative complaints without recurrence requiring surgery, was 100% at a mean follow-up of 277 days in a cohort of 261 women and 21 men (mean age 36.7 years).
  • In the high-risk subgroup (age ≥50, prior periorbital surgery), transient ectropion occurred in 61.7% despite universal canthal support; all cases resolved conservatively at a mean of 62.2 days.
  • The author attributes the ectropion partly to traction-induced neuropraxia and, for infiltrative materials, favors maximal safe debulking over complete removal to avoid musculocutaneous devascularization.
Caveat

Mean follow-up of about 9 months is short for late-onset granulomas that can recur years after injection. The long-term durability of the reported 100% success rate is therefore uncertain.

Hemostatic Net in Facial Aesthetic Surgery: A Systematic Review and Meta-Analysis.

Pooled, mostly nonrandomized data suggest the hemostatic net is associated with about 93% lower odds of hematoma than drain-based closure after cervicofacial rhytidectomy, without an increase in skin necrosis.
Overview

A systematic review and meta-analysis of 13 studies (3264 patients), 2175 of them treated with a hemostatic net and six studies comparative, pooled hematoma, necrosis, seroma, and hyperpigmentation outcomes in facial aesthetic surgery using random-effects models.

Key Findings
  • In cervicofacial rhytidectomy, the hemostatic net was associated with lower odds of hematoma than drain-based closure (OR 0.07, 95% CI 0.02–0.24; I² = 25%).
  • There was no difference in skin necrosis between techniques (OR 0.73, 95% CI 0.20–2.63; I² = 0%), and sensitivity analyses supported the robustness of the estimates.
  • Single-arm pooled incidences showed low absolute complication rates: hematoma 1.09%, seroma 1.66%, necrosis 0.96%, and persistent hyperpigmentation 0.28%.
  • Pigmentary change at suture entry sites was the most frequent visible adverse event; it was usually self-limited but could take up to 3 months to resolve.
Caveat

Evidence comes predominantly from nonrandomized studies, and only six of the 13 were comparative, so the large hematoma reduction may partly reflect differences in surgeon, era, or patient selection between net and drain cohorts. The authors themselves describe the pooled estimates as hypothesis-generating.

"Association of Anxiety and Depression with Patient-Reported Outcomes After Functional and Aesthetic Rhinoplasty".

Patients with anxiety or depression had worse postoperative obstruction scores and about 2.6-fold higher odds of revision after functional septorhinoplasty, but no differences in outcomes after aesthetic septorhinoplasty.
Overview

A retrospective single-center cohort of 669 patients (490 functional and 179 aesthetic septorhinoplasties, 2019–2024) compared NOSE and SCHNOS scores and revision rates between patients with and without diagnosed anxiety and/or depression.

Key Findings
  • After functional septorhinoplasty, both groups improved, but the anxiety/depression group had higher (worse) postoperative NOSE scores (35.3 vs 24.1) and SCHNOS-Obstructive scores (32.1 vs 24.1).
  • Anxiety or depression was associated with higher odds of revision after functional surgery (OR 2.56, 95% CI 1.51–4.39).
  • After aesthetic septorhinoplasty, SCHNOS-Cosmetic scores improved in both groups, with no differences in pre- or postoperative scores or revision rates.
Caveat

The aesthetic cohort of 179 patients may be too small to exclude a modest effect.

Sarcoma & Oncology

6 papers this week

Prevalence and risk factors of persistent and neuropathic pain following resection of pediatric extremity soft tissue sarcomas: A nationwide cohort study.

Persistent pain was documented in nearly half (47%) of children after extremity soft tissue sarcoma resection, with suspected neuropathic features in 35%, and neoadjuvant chemotherapy was associated with about fourfold higher odds of chronic pain.
Overview

A nationwide retrospective registry cohort of 109 patients under 18 years (Dutch Childhood Cancer Group, 2003–2025), of whom 78 and 69 were evaluable, assessed the prevalence and predictors of persistent and suspected neuropathic pain after extremity soft tissue sarcoma resection, supplemented by cross-sectional NRS and DN4 questionnaires.

Key Findings
  • Pain persisting 3 months or more after surgery was documented in 37 of 78 patients (47%), and suspected neuropathic pain in 24 of 69 (35%).
  • Neoadjuvant chemotherapy was independently associated with chronic postsurgical pain (OR 3.98, 95% CI 1.47–10.83).
  • Intended nerve resection showed a nonsignificant trend toward neuropathic pain (OR 5.90, 95% CI 0.88–39.66; p = 0.067).
  • Questionnaires were returned by 43 of 62 eligible survivors (69%), and DN4 scores were consistent with the retrospectively observed neuropathic pain prevalence.
Caveat

Pain status was abstracted from clinical records using descriptors such as burning or tingling, so inconsistent documentation could bias prevalence in either direction. With 78 evaluable patients, the regression models also had limited power to assess other predictors, including nerve resection.

Machine Learning-Based Recurrence and Survival Prediction in a Large Institutional Upper Extremity Soft Tissue Sarcoma Cohort.

Anatomy-specific machine learning models for upper extremity soft tissue sarcoma predicted local recurrence with a concordance index of 0.79 and discriminated about as well as the Sarculator and PERSARC nomograms in a single-center cohort.
Overview

Time-to-event machine learning models for local recurrence, distant metastasis, and overall survival, with death treated as a competing risk, were developed in a single-center cohort of 188 patients with upper extremity soft tissue sarcoma. Five survival algorithms were compared within nested cross-validation and benchmarked against the Sarculator, PERSARC, and MSKCC nomograms.

Key Findings
  • Over a median follow-up of 3.9 years, 5-year event rates were 24% local recurrence, 20% distant metastasis, and 13% death.
  • Best-performing models reached competing-risks concordance indices of 0.79 (local recurrence), 0.67 (distant metastasis), and 0.75 (overall survival); parsimonious models performed comparably.
  • Discrimination was similar to Sarculator and PERSARC and higher than the MSKCC nomogram for local recurrence (C-index 0.90 vs. 0.68).
  • Predicted-risk groups separated clearly on cumulative-incidence and survival curves (p < 0.001).
Caveat

All models were trained and internally cross-validated in 188 patients from one sarcoma center, with a limited number of recurrence, metastasis, and death events available for learning. Performance at other institutions and under other treatment protocols has not been tested.

Management of Merkel Cell Carcinoma of the Digits, Hand, and Wrist.

Pooled case reports suggest that wide local excision and ray amputation for digital Merkel cell carcinoma carry similar recurrence (about 29% vs 25%) and disease-related mortality, although each comparison rests on fewer than 10 patients per group.
Overview

This systematic review of 42 observational studies descriptively summarized surgical management, adjuvant therapy, nodal management, recurrence, and Merkel cell carcinoma-related mortality for tumors of the digits, hand, and wrist. Heterogeneity precluded meta-analysis.

Key Findings
  • Of 25 digital lesions, 15 underwent wide local excision and 10 ray amputation; recurrence was comparable at 2/7 (29%) and 2/8 (25%), and disease-related mortality was 2/9 (22%) in each group.
  • Hand and wrist lesions (n = 19) were treated mainly by wide local excision (89%), with recurrence in 7/14 (50%) and disease-related mortality in 2/12 (17%).
  • Adjuvant radiotherapy was given in 10/19 (53%) hand and wrist cases and chemotherapy in 4/19 (21%); nodal management included sentinel lymph node biopsy in 5/13 (38%) and dissection in 4/13 (31%).
Caveat

Outcome data were available for only 7–9 patients per treatment group on the digits, drawn from case reports with inconsistent staging. Whether excision is truly equivalent to ray amputation cannot be judged, particularly since the choice of amputation may have reflected tumor extent.

Nasal Sidewall Propeller Flap for 1-stage Reconstruction of Lateral Nasal Ala Defects.

A single-stage nasal sidewall propeller flap reconstructed lateral nasal ala defects without flap necrosis in 12 patients, with 3 requiring a secondary aesthetic refinement.
Overview

This case series of 17 patients with lateral nasal ala defects after carcinoma resection describes a 1-stage nasal sidewall propeller flap (NSPF), a freestyle perforator flap based on facial or internal nasal artery perforators, used in 12 patients, with melolabial propeller flaps in the remaining 5.

Key Findings
  • No flap necrosis occurred among the 12 NSPF and 5 melolabial propeller flap reconstructions.
  • Secondary aesthetic refinement was needed in 3 of 12 NSPF cases, compared with all 5 melolabial propeller flap cases.
  • For defects extending into the upper lip triangle, the NSPF was combined with a transverse jugal advancement flap to restore continuity of the upper lip aesthetic subunit.
  • The authors report good color and texture match with limited donor site morbidity, positioning the flap as an alternative to multistage flaps and free cartilage grafts.
Caveat

The series is small and descriptive. Long-term alar rim stability without cartilage support remains an open question.

Cutaneous Leiomyosarcoma of the Head and Neck: Appreciation of a More Indolent Biological Behavior and Implications for Its Management.

Cutaneous leiomyosarcoma, including head and neck lesions, appears to behave far more indolently than leiomyosarcoma in general, with about 3% metastasizing at 10 years and 96%–100% 5-year disease-specific survival.
Overview

This narrative review assessed the biological behavior of cutaneous leiomyosarcoma, with particular attention to head and neck lesions, covering recurrence, metastasis, risk factors, adjuvant treatment, and survival.

Key Findings
  • The head and neck accounts for 21%–33% of cutaneous leiomyosarcomas, and reported local recurrence rates range from 2% to 18%, with most recurrences local and within the first few years.
  • Only 3% develop metastatic disease at 10 years, and 5-year disease-specific survival is 96%–100%.
  • Positive or close surgical margins are the main risk factor for recurrence, with a trend toward higher risk at head and neck sites.
  • No data support adjuvant treatment, and the authors propose surveillance centered on physical examination and limited in duration.
Caveat

As a narrative rather than systematic review, literature search and study selection were not standardized.

Split-thickness skin grafts directly to bone for marginal mandibulectomy reconstruction: a case series.

Split-thickness skin grafts placed directly onto bone achieved graft take in all 11 marginal mandibulectomy defects, with minor, conservatively managed complications in 4 patients.
Overview

This case series of 11 patients from a tertiary Australian head and neck oncology service (2019–2024) describes immediate reconstruction of marginal mandibulectomy defects with split-thickness skin grafts placed directly on bone, bolstered with prefabricated partial dentures or intraoperatively fashioned foam.

Key Findings
  • All grafts took successfully, supported by either prefabricated partial dentures or foam bolsters fashioned intraoperatively.
  • Minor complications occurred in 4 of 11 patients, including small areas of bone exposure and donor site discomfort, all managed conservatively.
  • All patients who sought dental rehabilitation received implant-supported or removable prostheses, with functional speech and oral intake maintained.
Caveat

This is an uncontrolled series of 11 selected patients from one head and neck oncology service, with no flap-reconstructed comparison group. How graft coverage holds up over time and how outcomes compare with free flap reconstruction remain open.

Artificial Intelligence in Surgery

6 papers this week

Reliable Detection, Unreliable Clinical Decision-making: Artificial Intelligence Models in Burn Assessment.

Four commercial multimodal AI models identified burns on photographs with 97%–100% accuracy but chose correctly between debridement and grafting in only 25%–73% of burn cases, often inconsistently for the same image.
Overview

In a comparative evaluation of 50 clinical photographs (25 burns, 25 nonburns), four multimodal large language models (GPT-5.4 Pro, Grok 4.1, Gemini 3.1 Pro, Claude Opus 4.6) classified burn presence and recommended debridement versus immediate skin grafting across 5 independent runs (4000 assessments). Plastic surgeon expert consensus served as ground truth.

Key Findings
  • Burn detection was near-perfect at 97.2%–100% (κ = 0.896–1.000), with equivalent performance across Fitzpatrick skin tone strata.
  • Treatment accuracy in burn cases ranged from 24.8% to 72.8%, and 3 of 4 models performed below the majority-class baseline.
  • Reproducibility of treatment decisions fell to κ = 0.132–0.385 in 3 models, with inconsistent recommendations for identical images; error patterns were systematic and opposite in direction across models.
Caveat

The treatment comparison rests on only 25 cropped burn photographs, scored against plastic surgeon consensus. Whether the same accuracy and inconsistency would hold across a larger and more varied set of burns remains open.

Artificial Intelligence: Medical and Legal Implications and Risk Mitigation Strategies for Plastic Surgeons.

This review highlights that AI creates medical and legal exposure for plastic surgeons even when they do not use it themselves, through its use by other physicians, patients, and cybercriminals.
Overview

This article outlines how AI is being used in plastic surgery practice, the medical and legal liabilities it creates for plastic surgeons, including those who do not use it directly, and proposed risk-reduction strategies for patients, surgeons, and practices.

Key Findings
  • The article argues that liability exposure extends to non-users, because other physicians, patients, and cybercriminals use AI in ways that affect a surgeon's patients and practice.
  • Surgeons and their staff are described as responsible for understanding both the potential advantages and the liabilities of AI tools.
  • The author proposes risk-reduction strategies to safeguard patients, surgeons, and practices.
Caveat

The article reflects one author's analysis. Whether its proposed risk-reduction strategies reduce liability or patient harm in practice remains untested.

AI-Based Wound Measurement in a Telemedicine-Style Workflow: Agreement With In-Person Reference Measurements Compared With Individual Physicians and Expert Consensus.

AI segmentation of wound photographs measured wound size more consistently than individual physicians and matched expert consensus for height, though it tended to underestimate width.
Overview

This single-center validation study compared wound height and width estimates from two deep-learning segmentation models (TransNeXt and VW-Conv) and from five physicians working from bedside photographs with ArUco size markers against in-person ruler measurements by two experienced raters.

Key Findings
  • For wound height, both AI models showed excellent agreement (ICC 0.95–0.96) with in-person measurement, with mean absolute errors of 0.68–0.82 cm and minimal bias.
  • For width, agreement was moderate to strong (ICC 0.77–0.86) with systematic underestimation (bias -0.42 and -0.64 cm).
  • Single physician estimates were heterogeneous; pooled as a consensus, physicians reached height ICC 0.94 and width ICC 0.91, exceeding both AI models for width.
  • At pixel level, TransNeXt achieved a macro-averaged Dice of 0.886 (IoU 0.805) versus 0.818 for VW-Conv, with more consistent per-image performance.
Caveat

Validation came from one center using bedside fiducial markers. Performance on photographs taken without markers, by patients, or at other centers and wound types is untested.

Determinants of Artificial Intelligence Adoption in Aesthetic Practice: A Cross-Sectional Study.

Among 102 physicians in aesthetic practice, perceived clinical usefulness and ease of use were the strongest predictors of intent to adopt AI, while AI anxiety and perceived structural barriers lowered it.
Overview

A cross-sectional survey of 102 physicians (specialists, senior residents, and certified cosmetic medicine practitioners) tested an extended Unified Theory of Acceptance and Use of Technology (UTAUT) model. The predictors were performance expectancy, effort expectancy, AI anxiety, and perceived barriers, and the outcome was intention to adopt AI, analyzed with exploratory factor analysis, Pearson correlation, and multiple linear regression.

Key Findings
  • Performance expectancy was the strongest positive predictor (β = 0.431) of adoption intention, followed by effort expectancy (β = 0.287); both p < 0.001.
  • Performance and effort expectancy together accounted for 52% of the variance in adoption intention (R² = 0.52).
  • AI anxiety (β = −0.251, p < 0.001) and perceived barriers (β = −0.189, p = 0.004) each had a significant negative effect on adoption intention.
  • Demographic variables, including age and years of professional experience, showed no significant association with adoption intention.
Caveat

Adoption intention was self-reported in a single survey of 102 physicians, and the findings may not hold outside this physician group.

Machine Learning in Hand Pathology Diagnosis: A Narrative Review of Current Insights.

Published studies show convolutional neural networks detecting hand and wrist fractures with high accuracy, but limited external validation and poor interpretability still stand in the way of routine clinical use.
Overview

This narrative review drawing on a six-database search (PubMed, Google Scholar, EMBASE, Cochrane CENTRAL, Scopus, and Web of Science through March 2025) summarized machine learning applications for diagnosing hand fractures, tendon injuries, and nerve compression across history analysis, clinical examination, and imaging.

Key Findings
  • Convolutional neural networks (CNNs) demonstrated high diagnostic accuracy for fracture detection, the most prominent application identified in the review.
  • In validation studies, CNNs for distal radius and ulna fractures outperformed trainees and urgent care physicians at detection.
  • Wearable motion sensors combined with machine learning enabled objective joint assessment as an adjunct to the clinical examination.
  • Limited external validation, poor model interpretability, and difficult integration into clinical workflows were the main barriers to broader adoption.
Caveat

The authors name limited external validation as a key gap. How well the reported fracture-detection accuracy carries over to other institutions and routine clinical workflows remains to be shown.

Comparative Evaluation of Large Language Models in the Recognition of Postoperative Complications Following Aesthetic Surgery.

Across 30 simulated postoperative scenarios after aesthetic surgery, ChatGPT, Gemini, and Claude recognized common complications reasonably well, but appropriate emergency referral in high-risk cases ranged from 76.7% with Gemini to 96.7% with Claude.
Overview

In a comparative simulation study of 30 standardized scenarios spanning low-, moderate-, and high-risk complications after aesthetic surgery, each scenario was submitted to ChatGPT, Gemini, and Claude with a standardized prompt. Responses were rated on 5-point Likert scales for diagnostic accuracy, management appropriateness, triage accuracy, patient safety, and completeness, with critical management errors and dangerous reassurance recorded separately.

Key Findings
  • ChatGPT had the highest mean diagnostic accuracy (3.99 ± 0.57) compared with Claude (3.90 ± 0.62) and Gemini (3.61 ± 0.62; p < 0.001), and led in most other domains.
  • In high-risk scenarios, appropriate emergency referral was recommended in 96.7% of Claude, 93.3% of ChatGPT, and 76.7% of Gemini evaluations (p = 0.018).
  • Critical management errors were uncommon overall but most frequent with Gemini.
Caveat

The models were tested on 30 standardized scenarios with a single standardized prompt. Performance with real, unstructured patient messages over a multi-turn conversation remains untested.

Translational Research

6 papers this week

Optimizing Concentrated Growth Factor Therapy: Sodium Citrate Reduces Pain in Hair Loss Treatment.

In a 267-patient randomized trial, concentrated growth factor prepared with sodium citrate caused less injection pain and produced greater hair density gains in androgenetic alopecia than preparations made with heparin or no anticoagulant.
Overview

This phase 2, multicenter, single-blind randomized controlled trial of 267 patients with androgenetic alopecia at three tertiary hospitals in China allocated participants 1:1:1 to concentrated growth factor (CGF) prepared without anticoagulant, with 3.2% sodium citrate, or with heparin sodium, given as five intradermal injection sessions over 12 months. Primary endpoints were injection pain (VAS) and change in hair density at 3, 6, and 12 months.

Key Findings
  • Injection pain on VAS was significantly lower with sodium citrate than with heparin or no anticoagulant (P < 0.001).
  • At 6 and 12 months, the sodium citrate group showed greater hair density increases and higher rates of ≥50% subjective clinical improvement (P < 0.001).
  • In vitro, sodium citrate best preserved growth factor levels and platelet function among the three preparations.
  • Satisfaction and willingness for re-treatment were highest in the sodium citrate group (87.6%).
Caveat

All three arms received concentrated growth factor, with no standard-therapy or untreated control arm. The trial identifies the better anticoagulant but leaves open how much CGF itself adds over established alopecia treatments.

Nanofat Grafting: The Future of Regenerative Medicine? A Bibliometric Analysis and Systematic Review of Clinical Applications.

Nanofat research has grown rapidly since 2013, reaching 77 clinical studies with 2,737 patients, but variable processing methods and study designs limit firm conclusions for any specific indication.
Overview

This study combined a bibliometric analysis of 286 Web of Science publications with a PRISMA-based systematic review of 77 clinical studies (2,737 patients), mapping publication trends, leading contributors, and keyword networks and grouping human clinical applications of nanofat and mechanically emulsified adipose-derived products by indication.

Key Findings
  • Of 286 publications, 241 appeared after nanofat was introduced in 2013; output rose markedly after 2019 and peaked in 2025 with 45 publications.
  • The corpus accumulated 4,320 citations (H-index 37), with China, the United States, Italy, Switzerland, and Germany as the leading contributors.
  • Across the 77 clinical studies, 2,304 of 2,737 patients received nanofat-based or mechanically emulsified adipose-derived interventions.
  • Applications fell into eight clinical domains, with scar remodeling, facial/skin rejuvenation, wound healing, and periorbital rejuvenation the most frequent indications.
Caveat

The included studies differ in processing technique, adjunctive therapies, and outcome measures, which limits comparison across studies and leaves indication-specific efficacy open.

3D minichannel-morphed adipose stem cell-cartilage granule reconstituted tough grafts for repairing segmental tracheal defects in preclinical models.

In rabbit and pig models, 3D-printed minichannel scaffolds filled with cartilage granules, platelet-rich plasma, and adipose-derived stem cells repaired segmental tracheal defects without chondrocyte isolation or expansion, maintaining airway patency with survival up to 115 days.
Overview

This preclinical study in rabbit and porcine models tested 3D-printed porous minichannel scaffolds loaded with cartilage granules, platelet-rich plasma, and adipose-derived stem cells (ASCs), matured by short-term ectopic incubation before orthotopic transplantation into segmental tracheal defects.

Key Findings
  • Two weeks of ectopic incubation gave the grafts native-like mechanical resilience together with transmural vascularization.
  • After orthotopic repair of segmental defects, the grafts maintained airway patency and supported survival for up to 115 days in rabbits and pigs.
  • Mechanistically, ASCs improved cartilage granule survival within the hypoxic minichannels by upregulating chondrocyte glycolysis.
  • Using cartilage granules directly eliminates chondrocyte isolation and expansion, the time-consuming step that limits conventional tracheal tissue engineering.
Caveat

The 115-day figure is the maximum rather than the typical survival. Long-term durability and performance in human airways remain untested.

Adipose-derived stem cells secrete pro- and anti-inflammatory cytokines after major burn injury.

Adipose-derived stem cells harvested from patients with major burns secreted significantly more IL-8 than cells from elective breast surgery patients, suggesting a pro-inflammatory paracrine profile after burn injury.
Overview

This laboratory comparison of 38 patients (17 with full-thickness burns, 21 elective breast surgery controls) cultured adipose-derived stem cells (ADSCs) from fat collected at the index burn operation or elective surgery and analyzed culture supernatants with a ten-analyte cytokine multiplex, alongside histologic staining of the source fat for immune cells.

Key Findings
  • Flow cytometric sorting confirmed ADSC identity by expression of CD90, CD105, and CD73 in the cultured cells.
  • IL-8 was significantly higher in supernatant from burn-derived ADSCs (p < 0.05) on Wilcoxon testing, with Tobit regression used for multivariable analysis.
  • Histology showed more lymphocytes and macrophages in burn fat than in non-burn fat.
Caveat

Controls were elective breast surgery patients, who may differ from burn patients in sex, age, harvest site, and systemic illness, and 38 patients leave little room to separate these factors from the burn effect.

Influence of Cannula Design on Lipoaspirate Architecture: A Double-Blind, Split-Body Trial Comparing Basket, Accelerator, and Candy Cane Cannulas.

In 16 liposuction patients, cannula design changed the size and uniformity of harvested fat parcels but showed no measurable effect on adipocyte histologic integrity or phase distribution.
Overview

This double-blind, non-randomized split-body trial of 16 patients undergoing abdominal liposuction harvested fat with three 4-mm cannulas (Basket, Accelerator, and Candy Cane). The resulting 48 samples were assessed for phase separation, parcel area on stereoscopic imaging, and histologic adipocyte alteration, septal disorganization, and debris.

Key Findings
  • The Accelerator cannula produced the largest and most heterogeneous parcels, whereas the Candy Cane and Basket cannulas yielded smaller, more uniform parcels.
  • Cannula type had no significant effect on aqueous, adipose, or oily phase proportions or on histologic adipocyte alteration, septal disorganization, or debris.
  • Patient age correlated significantly with adipose-phase volume and parcel size across all three cannulas.
Caveat

Only the harvested tissue was examined; adipocyte viability and graft retention after injection were not measured. Whether the differences in parcel size between cannulas lead to different graft take at recipient sites remains unknown.

Targeting Piezo1/2 ion channels for modulation of the lymphatic system: mechanisms, applications, and therapeutic prospects.

This review suggests Piezo1 acts as a key shear-stress sensor in lymphatic endothelium that governs valve formation and sprouting, with dysfunction linked to congenital lymphedema, while therapeutic targeting of the channel remains largely experimental.
Overview

A review summarizing the structure and gating mechanics of Piezo1/2 mechanosensitive channels in lymphatic endothelial cells, their roles in lymphatic development and disease, and emerging strategies to modulate them therapeutically.

Key Findings
  • Piezo1 converts fluid shear stress and interstitial pressure into calcium influx, integrating Orai1/Notch, ANGPT/TIE/FOXO1, and EPHB4/RASA1 signaling to control lymphatic sprouting, valve morphogenesis, and meningeal lymphatic development.
  • Piezo1 dysregulation is linked to congenital lymphedema, as well as to tumor lymphatic metastasis and neurological conditions including hydrocephalus and craniosynostosis.
  • The authors highlight a possible role for Piezo2 in lymphedema-associated sensory impairment, an area they flag as warranting further investigation.
  • Candidate interventions include small-molecule agonists and inhibitors, gene editing, physical modulation, and targeted drug delivery; poor tissue specificity and limited spatiotemporal control remain the main barriers.
Caveat

Whether modulating Piezo channels would help secondary lymphedema after cancer surgery or lymph node dissection remains open.

Cases

6 papers this week

Free Innervated Gracilis Muscular Flap for Functional Abdominal Wall Reconstruction Following Desmoid Tumor Resection: A Case Report and Literature Review.

Lykoudis EG et al.·Microsurgery Reconstruction & Microsurgery

A single-patient case report with literature review describing single-stage reconstruction of an 8 × 7 cm rectus abdominis and anterior sheath defect after wide desmoid tumor resection in a 29-year-old woman, using a free innervated gracilis muscle flap. The authors present it as the first functional reconstruction of this type.

Repurposing the Pedicled Posterior Arm Flap for Autologous Breast Reconstruction.

Parikh S et al.·Plast Reconstr Surg Glob Open Breast

A single-patient case report of implant removal and conversion to autologous reconstruction with pedicled adipocutaneous posterior arm flaps, in a patient whose prior TRAM flap, latissimus-violating axillary scar, and thigh liposuction excluded DIEP, latissimus dorsi, and PAP options.

Robot-assisted Deep Inferior Epigastric Perforator Flap Breast Reconstruction: First Reported Case in the Middle East Gulf Region.

Yanay N et al.·Plast Reconstr Surg Glob Open Breast

A single-patient case report of robot-assisted DIEP flap breast reconstruction via a transabdominal preperitoneal approach in a 53-year-old woman with prior irradiation and severe capsular contracture after implant-based reconstruction; the authors report it as the first such case in the Middle East Gulf region.

Tendon grafting using Gracilis and semitendinosus tendons for extensive flexor tendon defects following synovial sarcoma excision: A case report.

Suzuki K et al.·JPRAS Open Sarcoma & Oncology

A single-patient case report of a 39-year-old woman with volar wrist synovial sarcoma whose wide excision left multiple flexor digitorum profundus defects, reconstructed with ipsilateral gracilis and semitendinosus tendon autografts.

Outcomes of simultaneous microsurgical replantation of complete amputations at the distal third of the right forearm and left wrist: a case report and 22-month follow-up.

Van CT et al.·JPRAS Open Hand

A single-patient case report of a 45-year-old industrial worker with simultaneous complete amputations through the distal right forearm and left wrist from a paper-cutting machine. Two concurrent microsurgical teams replanted both limbs after 8 hours of total ischemia, with 22 months of follow-up.

Staged Soft Tissue Reconstruction of Traumatic Right Foot Degloving Using Wound Matrix.

Percle A et al.·Orthopedics Burns & Wounds

A single-patient case report of a 22-year-old man with severe right foot degloving and metatarsophalangeal fracture-dislocations after a rail-car injury, managed with serial debridement, negative pressure wound therapy, biodegradable temporizing matrix (BTM), and delayed split-thickness skin grafting.

Closing Notes

The diagnostic studies in lymphedema, breast and nerve surgery each test only part of the decision they are meant to guide. Ultrasound mapping before lymphovenous anastomosis in Plast Reconstr Surg was checked only where incisions were made, so it shows how often a marked site proved usable, not how many usable vessels it missed. Pooled ICG angiography of mastectomy skin flaps is dependable when perfusion looks adequate, yet about four in five flaps it flagged did not develop necrosis. The scratch collapse test was positive in all 45 patients, each of whom had lower extremity decompression, so its behavior without compression is unknown.

Among comparisons of technique, none of the null results can show that two operations are interchangeable. The randomized fascicle transfer trial analyzed 18 and 15 of 50 enrolled patients, and the digital Merkel cell comparison pools case reports with fewer than ten patients per group.

Ultrasound mapping and a reassuring angiogram can support operative decisions now; a poor angiogram alone is weak grounds for excising skin. The scratch collapse test needs a cohort that includes patients without compression, and the median-versus-ulnar donor question a trial sized for equivalence, before either guides practice.

Until next Sunday,

Marius DryschMarius Drysch, MD, MHBA