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Plastic Surgery Weekly

The week in peer-reviewed plastic surgery research
Issue 10Sun, Jul 19, 2026213 screened · 64 selected
This Week in Brief

Reconstruction leads with a Plast Reconstr Surg series on suzetrigine, a non-opioid NaV1.8 inhibitor added to multimodal analgesia: 90.9% of aesthetic and reconstructive patients needed no opioid rescue, 90.7% rated pain control good to excellent, and the few who did use opioids took a mean of 2.4 tablets over 2.0 days. The IDEAL BREAST cohort in the same journal finds immediate and delayed autologous reconstruction under postmastectomy radiotherapy produce comparable major complication rates (6.4% vs 3.5%, p=.29) and comparable BREAST-Q scores at a median 5.0 years. A multicentre Ann Surg Oncol RCT of da Vinci SP robotic versus open nipple-sparing mastectomy reports identical positive-margin counts, six patients each, but longer operative times, 141.6 versus 83.9 minutes. Robotics recur in a J Plast Reconstr Aesthet Surg review of early microsurgical adoption, most often for immediate lymphatic reconstruction (52.8%), again with longer anastomosis times that shorten along a learning curve. In J Reconstr Microsurg, intraoperative EMG puts cervical phrenic nerve variation at 63.3%, roughly double the 31.8% found by cadaveric dissection, with variant amplitudes reaching half the main nerve in 44.4% of recordable cases.

Across the Field
Reconstruction & Microsurgery.

The suzetrigine opioid-free series is joined in Plast Reconstr Surg by a thirty-year sternal wound reconstruction experience, which ties delayed reconstruction and renal or diabetic comorbidity to higher complications despite improving overall outcomes. In Microsurgery, CTA mapping of septocutaneous fibular perforators links fibular artery stenosis to fewer perforators and favours artery-based over fibula-based flap planning, while a portable laser Doppler flowmetry study derives a formula adjusting free-flap readings for mean arterial pressure and haemoglobin. Two Plast Reconstr Surg Glob Open lymphatic papers appear: ICG-guided mapping with negative pressure therapy healed all 4 refractory inguinal lymphorrhea cases without recurrence, and a narrative review reframes lymphatic ultrasound as a repeatable longitudinal tool. A transplant-recipient sternal mediastinitis algorithm discharged all 10 patients.

Hand & Peripheral Nerve.

Cervical phrenic nerve mapping leads the section, with intraoperative EMG detecting variation in 63.3% versus 31.8% at dissection. In Plast Reconstr Surg Glob Open, selective tibial-to-peroneal motor nerve transfer let 77% of foot-drop patients walk without an ankle-foot orthosis, while chest and palm subcutaneous pocket techniques salvaged every fingertip amputation in infants under two, at a 43% partial-necrosis cost. Hand (N Y) contributes combined dorsal spanning and volar plating that achieved union in all highly comminuted distal radius fractures at nearly three years, plus a phalangeal morphology study favouring 2.0- to 3.0-mm intramedullary headless screws. A J Hand Surg Am anatomical study matches the second metatarsal head to the proximal capitate for lunocapitate reconstruction.

Burns & Wounds.

A Sci Transl Med study identifies PTEN as a master suppressor of inflammation, angiogenesis and lymphangiogenesis in nonhealing venous leg ulcers, its inhibition accelerating closure in mice. A randomized trial in Sci Rep adds cold atmospheric plasma to standard care for Wagner grade 2 diabetic foot ulcers, speeding contraction and cutting bacterial load. Across two Diabetic Foot Consortium cohorts, baseline wound area and duration predicted healing while healing rates barely moved over two decades, a result Wound Repair Regen frames around trial-design sample sizes. A Med Sci Monit analysis shows a simple age, total body surface area and inhalation-injury model predicts severe-burn mortality about as well as established composite scores.

Breast.

Absorbable vancomycin/gentamicin beads placed in the implant pocket were associated with roughly half the infection rate (9.3% vs 21.4%) and far less reconstructive loss (4.0% vs 18.0%) in Plast Reconstr Surg. Two negative antibiotic studies temper that: adding two weeks of oral antibiotics to absorbable cement did not lower infection or expander loss, and extending prophylaxis beyond 24 hours in prepectoral reconstruction gave no benefit. A J Plast Reconstr Aesthet Surg meta-analysis finds biologic and synthetic meshes comparable in irradiated implant reconstruction, with subpectoral placement and preoperative radiotherapy predicting implant loss. Extreme oncoplasty across 718 patients in Ann Surg Oncol matched standard oncoplasty for 5-year local recurrence (3.37% vs 1.44%) in tumors larger than 50 mm.

Aesthetic.

A continuous 1,191-case Plast Reconstr Surg series traces dorsal preservation rhinoplasty along a U-shaped learning curve, revision rates peaking at 9.9% during unchecked indication expansion and falling to 3.3% under a unified selection framework. A 3,805-case Plast Reconstr Surg Glob Open cohort of incisionless ultrasound-guided rib remodeling (RibXcar) reports a mean waist reduction near 11 cm at one year, with rare pneumothorax and hemothorax. In Aesthet Surg J, phase 2b trenibotulinumtoxinE improved glabellar lines with onset by 8 hours but largely faded by two weeks. A rabbit ear-artery model in Sci Rep found intra-arterial polynucleotide filler caused only transient flow disturbance, whereas cross-linked hyaluronic acid produced persistent emboli and extensive necrosis; separately, frontal bone contouring with forehead lifting dropped median worst headache from 7 to 2.

Sarcoma & Oncology.

In Ann Surg Oncol, trimodality therapy for radiation-associated breast angiosarcoma was associated with markedly higher 8-year recurrence-free and overall survival than surgery with or without chemotherapy. A J Vis Exp protocol standardizes ultrasound-guided bleomycin electrosclerotherapy (BEST) for slow-flow vascular malformations, claiming lower cumulative bleomycin doses and fewer sessions. A three-patient JPRAS Open series reconstructed intermediate-width vulvar defects with a staged meshed advancement flap and no recurrence over five years.

Artificial Intelligence in Surgery.

A fine-tuned domain-specific model, ProCode, coded plastic surgery operative reports more accurately than baseline LLMs and professional human auditors in Plast Reconstr Surg Glob Open, with its widest margin on complex multi-code procedures. Plast Reconstr Surg reports a board-certified surgeon training an AI video avatar, a digital twin, to deliver educational and patient-facing content in the surgeon's likeness. A single-arm JMIR Med Educ pilot found AI-generated microlearning modules feasible for residents, with confidence gains largest in the weakest baseline topic. A structured Wound Repair Regen review maps machine learning across wound care but flags dataset and validation gaps blocking deployable tools.

Translational & Hallmark Medicine.

A rat axial-flap model in Plast Reconstr Surg shows the VCP modulator KUS121, dosed after reperfusion, lifting ischemia/reperfusion flap survival from about 49% to 96%. In Aesthet Surg J, intramuscular human fat grafts in nude mice were largely resorbed and replaced by fibrosis by six months with no functional gain, arguing a structural rather than regenerative role. A Burns Trauma study reports the adipose-derived peptide ADSCP5 reducing collagen and scar formation via PI3K/AKT/mTOR-autophagy and NF-kappaB/IL-6 signaling in cell and animal models. Two reviews weigh adipose-derived stromal cells and micro-fragmented adipose tissue (Lipogems), both concluding preclinical promise outpaces clinical readiness.

Cases.

A Plast Reconstr Surg Glob Open case follows staged dermal-template plus full-thickness graft reconstruction of a neonatal hand sarcoma defect, durable and functional beyond 10 years. A second PRSGO case uses volumetric postcontrast MRI with 3D segmentation to map gluteal polymer deposits for surgical planning. In Rheumatol Int, a dermatomyositis case with systematic review supports surgical excision and flap or graft reconstruction for symptomatic autoimmune-associated calcinosis despite recurrence risk. A small prospective study in Aesthet Surg J Open Forum measured upward modiolus repositioning at 3 months after combined high-intensity facial electrical stimulation and radiofrequency.

Suzetrigine as Part of Multimodal Therapy Enables Opioid-Free Recovery After Aesthetic or Reconstructive Procedures.

In aesthetic and reconstructive surgery, adding the non-opioid NaV1.8 inhibitor suzetrigine to multimodal analgesia let about 91% of patients recover without any opioids.
Overview

A single-arm phase 4 study of 99 patients undergoing aesthetic or reconstructive procedures in which opioids are commonly used for at least 72 hours postoperatively received suzetrigine (100 mg preoperatively, then 50 mg q12h) as part of multimodal therapy, with the primary endpoint being patient global assessment of pain control at end of treatment.

Key Findings
  • 90.7% of patients rated pain control as good, very good, or excellent on the patient global assessment, consistently across procedure types.
  • 90.9% required no opioid rescue; the minority who did received a mean of 2.4 tablets over a mean of 2.0 days.
  • The most common regimen was suzetrigine with only acetaminophen and/or ibuprofen (78.8%), while 12.1% used suzetrigine alone.
  • Suzetrigine was safe and well tolerated, with adverse events consistent with the postoperative setting.
Caveat

This was a single-arm study with no concurrent control group, so the high opioid-free rate is benchmarked only against historical literature and cannot be causally attributed to suzetrigine.

Immediate versus DElayed AutoLogous Breast REconstruction and postmaSTectomy radiotherapy (IDEAL BREAST) The IDEAL reconstruction-radiotherapy timing.

In autologous breast reconstruction requiring postmastectomy radiotherapy, immediate and delayed reconstruction showed comparable complication rates and comparable long-term quality of life.
Overview

A retrospective and cross-sectional multicenter cohort of 1,095 reconstructions in 793 patients compared immediate versus delayed autologous breast reconstruction, stratified by receipt of postmastectomy radiotherapy, with major and minor complications and BREAST-Q outcomes as endpoints.

Key Findings
  • Among irradiated patients, major complication rates were not significantly different between immediate (6.4%) and delayed (3.5%) reconstruction (p=.29), with similar findings for minor complications.
  • At a median BREAST-Q follow-up of 5.0 years, irradiated immediate and delayed reconstruction yielded comparable health-related quality of life across all domains.
  • On multivariate analysis, current smoking was an independent risk factor for complications in unirradiated patients, while harvesting multiple perforators was associated with reduced risk.
Caveat

Because treatment was assigned by shared decision-making rather than randomization, the immediate and delayed groups may differ in unmeasured ways, and the BREAST-Q data were collected cross-sectionally.

A Prospective, Multicenter Randomized Controlled Trial (RCT) of the da Vinci SP® Surgical System versus Open Surgery in Nipple-Sparing Mastectomy (NSM) Procedures for Patients with Breast Cancer.

Robotic single-port nipple-sparing mastectomy achieved margin status and complication rates comparable to open surgery, at the cost of longer operative times.
Overview

A multicenter randomized controlled trial of 74 patients (131 mastectomies) randomized women with early-stage breast cancer 1:1 to robotic (da Vinci SP) versus open nipple-sparing mastectomy with immediate implant reconstruction, with primary endpoints of conversion, 42-day adverse events, and positive margin rates.

Key Findings
  • Operative time was longer for robotic surgery (141.6 versus 83.9 minutes), with no conversions to open surgery.
  • Positive surgical margin rates were identical (six patients each), and nipple-areolar preservation at 42 days was 100% robotic versus 98.5% open.
  • Serious adverse events (3 robotic vs 8 open) and BREAST-Q scores favored robotic surgery, but these differences were not statistically significant.
Caveat

The small sample limits statistical power, and the longer robotic operative times together with the more favorable but non-significant robotic outcomes may reflect early experience with the technique.

Early institutional adoption of robotic-assisted microsurgical reconstruction: A retrospective descriptive study.

Early institutional use of robotic microsurgery was technically feasible with longer operative times but no consistent complication difference versus manual anastomosis.
Overview

A single-center retrospective descriptive series of 118 microsurgical procedures (36 robotic, 82 manual) across free flap breast reconstruction, immediate lymphatic reconstruction, and lymphaticovenous bypass characterized utilization and operative performance during initial adoption of the Symani system.

Key Findings
  • Robotic use was most common in immediate lymphatic reconstruction (52.8%), followed by free flap breast reconstruction and lymphaticovenous bypass, with variation across surgeons.
  • Mean operative duration was longer for robotic cases in both free flap (594.7 vs 532.1 min) and ILR procedures (92.4 vs 49.4 min).
  • Postoperative complications and anastomotic revision showed no consistent pattern favoring either approach.
  • Anastomosis time varied across sequential cases with a general reduction over time, consistent with a learning curve.
Caveat

This is a descriptive single-center study with non-randomized allocation and no statistical comparison, so observed differences cannot be attributed to the robotic technique itself.

Insights into Cervical Phrenic Nerve Variations Based on Cadaveric Dissection and Intraoperative Electromyography.

Intraoperative EMG detected phrenic nerve variations roughly twice as often as cadaveric dissection, and some accessory branches carried substantial diaphragmatic signal.
Overview

A combined study using cadaveric dissection of 22 sides and intraoperative EMG of 30 sides during contralateral C7 nerve transfer characterized the prevalence and electrophysiology of cervical phrenic nerve variations.

Key Findings
  • Phrenic nerve variation prevalence was 31.8% by anatomical dissection but 63.3% by intraoperative EMG, suggesting dissection underestimates true prevalence.
  • The variant branch most often coursed lateral to the main phrenic nerve (47.4%), overlying the anterior scalene muscle.
  • In 44.4% of cases with recordable signals, the variant amplitude reached ≥50% of the ipsilateral main phrenic nerve amplitude, implying a possible contribution to diaphragmatic innervation.
  • The main phrenic nerve showed larger amplitudes (p<0.001), confirming its role as the primary diaphragmatic motor supply.
Caveat

The sample was small with different denominators for dissection versus EMG, and findings derive from a single surgical model (contralateral C7 transfer), limiting generalizability.

Reconstruction & Microsurgery

10 papers this week

Suzetrigine as Part of Multimodal Therapy Enables Opioid-Free Recovery After Aesthetic or Reconstructive Procedures.

In aesthetic and reconstructive surgery, adding the non-opioid NaV1.8 inhibitor suzetrigine to multimodal analgesia let about 91% of patients recover without any opioids.
Overview

A single-arm phase 4 study of 99 patients undergoing aesthetic or reconstructive procedures in which opioids are commonly used for at least 72 hours postoperatively received suzetrigine (100 mg preoperatively, then 50 mg q12h) as part of multimodal therapy, with the primary endpoint being patient global assessment of pain control at end of treatment.

Key Findings
  • 90.7% of patients rated pain control as good, very good, or excellent on the patient global assessment, consistently across procedure types.
  • 90.9% required no opioid rescue; the minority who did received a mean of 2.4 tablets over a mean of 2.0 days.
  • The most common regimen was suzetrigine with only acetaminophen and/or ibuprofen (78.8%), while 12.1% used suzetrigine alone.
  • Suzetrigine was safe and well tolerated, with adverse events consistent with the postoperative setting.
Caveat

This was a single-arm study with no concurrent control group, so the high opioid-free rate is benchmarked only against historical literature and cannot be causally attributed to suzetrigine.

Early institutional adoption of robotic-assisted microsurgical reconstruction: A retrospective descriptive study.

Early institutional use of robotic microsurgery was technically feasible with longer operative times but no consistent complication difference versus manual anastomosis.
Overview

A single-center retrospective descriptive series of 118 microsurgical procedures (36 robotic, 82 manual) across free flap breast reconstruction, immediate lymphatic reconstruction, and lymphaticovenous bypass characterized utilization and operative performance during initial adoption of the Symani system.

Key Findings
  • Robotic use was most common in immediate lymphatic reconstruction (52.8%), followed by free flap breast reconstruction and lymphaticovenous bypass, with variation across surgeons.
  • Mean operative duration was longer for robotic cases in both free flap (594.7 vs 532.1 min) and ILR procedures (92.4 vs 49.4 min).
  • Postoperative complications and anastomotic revision showed no consistent pattern favoring either approach.
  • Anastomosis time varied across sequential cases with a general reduction over time, consistent with a learning curve.
Caveat

This is a descriptive single-center study with non-randomized allocation and no statistical comparison, so observed differences cannot be attributed to the robotic technique itself.

Predictors of Major and Minor Complications Following Sternal Wound Reconstruction: A Thirty-Year Experience.

Across 30 years of sternal wound reconstruction, delayed reconstruction and renal or diabetic comorbidity predicted more complications, while overall outcomes improved despite rising patient complexity.
Overview

A single-institution retrospective review of 584 patients who underwent sternal wound reconstruction between 1995 and 2024 used multivariate analysis to identify predictors of 30-day complications, reoperation, and mortality.

Key Findings
  • The overall complication rate was 42.1%, with reoperation at 11.8% and 30-day mortality at 6.9%.
  • Chronic kidney disease, end-stage renal disease, and diabetes were significantly associated with higher complication rates.
  • Longer intervals between index cardiac surgery and reconstruction correlated with more complications (41 vs. 27 days, p=0.0002).
  • Over the study period, 30-day mortality improved from 10.3% to 4.8% (p=0.0441) despite patients presenting with more comorbidities.
Caveat

As a retrospective single-institution experience spanning three decades, evolving perioperative care and era effects confound both the temporal improvements and the predictor associations.

Computed Tomography Angiography-Based Mapping of Septocutaneous Fibular Artery Perforators: An Anatomical Analysis.

On CTA, fibular artery stenosis was associated with fewer septocutaneous perforators, and artery-based mapping proved more stable than fibula-based mapping for flap planning.
Overview

A retrospective CTA analysis of 491 limbs from 247 patients yielding 812 septocutaneous fibular artery perforators compared perforator number and spatial distribution using fibula-based and artery-based reference systems.

Key Findings
  • Limbs with fibular artery stenosis had fewer perforators than non-stenotic limbs (median 0.5 vs 2, p<0.001).
  • Perforator distribution was nonuniform in both reference systems, with clustering in the mid-segments (p<0.001).
  • Non-1A Kim run-off classification predicted a more proximal fibula-referenced position (β=-10.0 percentage points), whereas no factor affected artery-referenced position, supporting greater stability of artery-based mapping.
Caveat

This is an imaging-only retrospective analysis with no correlation to surgical or flap outcomes, so the implications for flap planning remain inferential.

The management of sternal mediastinitis in heart and lung transplant patients: An 8-year experience and application of reconstructive algorithm.

In heart and lung transplant recipients with sternal mediastinitis, an incision-guided reconstructive algorithm achieved successful discharge in all 10 patients despite prolonged, complex treatment courses.
Overview

A single-centre retrospective series of 10 heart and lung transplant recipients managed surgically for deep sternal wound infection over 8 years described microbiology, reconstructive strategy, and outcomes alongside a PRISMA-compliant systematic review.

Key Findings
  • Treatment courses were prolonged, with a median of 4 debridements, 42.5 days of negative pressure wound therapy, and a median DSWI-related length of stay of 147 days.
  • Reconstruction was guided by prior incision, with reverse abdominoplasty predominating after clamshell thoracotomy (5/7) and bilateral pectoralis major advancement flaps after median sternotomy (2/3).
  • All patients were successfully discharged with no perioperative mortality.
Caveat

This is a very small single-centre case series (n=10) with no comparator group, so the reconstructive algorithm's effectiveness cannot be generalized or compared with alternative approaches.

Patient-reported Outcomes of Penile Inversion Vaginoplasty Using Post-Affirming Surgery Form and Function Individual Reporting Measure: A Retrospective Single-institution Study.

Long-term patient-reported outcomes after penile inversion vaginoplasty show high satisfaction with genital appearance and clitoral sensation, while vaginal dryness, dyspareunia, and revision surgery remain common.
Overview

A retrospective single-institution cohort of 193 patients who underwent penile inversion vaginoplasty (2017–2023) were invited to complete the validated transgender-specific AFFIRM instrument (0–200 scale, lower scores better) covering appearance, urologic, and gynecologic domains; 47.8% of surveyed patients responded.

Key Findings
  • 90% of respondents strongly agreed their anatomy aligned with their gender identity, most reported high satisfaction with genital appearance, and clitoral sensation was present in 93%, most often described as pleasurable.
  • Although 59% reported a misdirected urine stream, the mean bother score was low (1.64 ± 1.77), indicating minimal urologic bother overall.
  • Vaginal dryness and dyspareunia were reported by 43% and 44% of respondents respectively, with 27% describing symptoms as bothersome.
  • Major complications occurred in 13.9% and revision surgery in 34.2%, most commonly for stenosis or depth concerns (13.5%).
Caveat

The 47.8% response rate and the cross-sectional, single-institution design raise the possibility of responder bias, so the favorable satisfaction scores may not represent the full operative cohort.

Hair Removal with 755 nm Alexandrite Laser via Subcutaneous Route in Stage-III Ear Reconstruction by Expansion.

Intraoperative subcutaneous 755 nm laser depilation during stage-III ear reconstruction achieved slightly greater short-term hair reduction than conventional preoperative external laser while using lower fluence.
Overview

A prospective cohort of 44 microtia patients undergoing stage-III auricular reconstruction compared intraoperative subcutaneous 755 nm Alexandrite laser depilation (n = 23) with a standard external laser session one week preoperatively (n = 21), measuring hair-count reduction two months after treatment.

Key Findings
  • The subcutaneous group achieved 48.3% mean hair-count reduction versus 44.7% in the external group (P < 0.001).
  • The subcutaneous route delivered comparable depilation at lower laser fluence (11.04 vs 16.29 J/cm², P < 0.001).
  • No laser-related complications occurred in either group, and patient satisfaction was high throughout.
Caveat

The two-month follow-up captures only short-term hair reduction and cannot address long-term regrowth or the total number of sessions ultimately needed, and the small single-center sample limits generalizability.

Lymphatic Ultrasound in Longitudinal Decision-making for Lymphedema: A Narrative Review Integrating Conservative and Surgical Management.

This review argues that lymphatic ultrasound, interpreted with structured frameworks, can act as a repeatable longitudinal tool guiding both conservative and surgical lymphedema management rather than a one-time diagnostic adjunct.
Overview

This narrative review synthesizes evidence on lymphatic ultrasound (vessel characterization, differentiation from veins, subcutaneous tissue evaluation, and elastography) and proposes integrating previously described vessel- and tissue-based findings into a longitudinal decision framework spanning conservative and surgical lymphedema care.

Key Findings
  • Lymphatic ultrasound enables repeated, noninvasive assessment of both lymphatic vessels and surrounding subcutaneous tissue within a single examination.
  • Structured interpretation using NECST-aligned vessel assessment and D-CUPS may help clinicians adjust compression, identify windows for lymphaticovenular anastomosis, and reassess treatment targets over time.
  • The review's principal contribution is a longitudinal, practice-oriented decision framework linking vessel status, tissue phenotype, and conservative versus surgical decision-making across the disease course.
Caveat

As a narrative review, the framework reflects expert synthesis rather than systematic or comparative evidence, and the authors note it requires broader external validation before it can be considered widely generalizable.

Portable-Type Laser Doppler Flowmetry Monitoring for Free Tissue Transfers: Factors That Affects Free Flap Blood Flow.

Free-flap laser Doppler flowmetry readings vary systematically with mean blood pressure and hemoglobin, yielding a formula intended to help separate systemic physiologic changes from local vascular compromise.
Overview

A retrospective review of 65 free flaps in 64 patients monitored with portable laser Doppler flowmetry (pLDF) applied a mixed-effects model to identify the systemic factors influencing pLDF values.

Key Findings
  • Each 1 mmHg rise in mean blood pressure raised pLDF by 0.098 mL/min (p < 0.001), and each 1 g/dL fall in hemoglobin raised it by 0.883 mL/min (p < 0.001).
  • The authors derived an equivalence in which 1 g/dL of hemoglobin ≈ 9 mmHg of mean blood pressure in its effect on measured flow.
  • Age, sex, recipient site, smoking, hypertension, and diabetes showed no significant influence on pLDF values.
Caveat

The single-center retrospective design and very low event rate (two vascular compromises) mean the proposed formula rests on correlational data and has not been prospectively validated for detecting flap compromise.

Surgical Strategy for Intractable Inguinal Lymphorrhea Using Combined Indocyanine Green Imaging and Negative Pressure Wound Therapy.

In four patients with refractory inguinal lymphatic leakage, combining ICG-guided lymphatic mapping with negative pressure wound therapy achieved complete healing without recurrence.
Overview

A case series of 4 patients with refractory inguinal lymphatic leakage unresponsive to prior ligation used subcutaneous ICG fluorescence to identify and ligate leaking vessels, followed by negative pressure wound therapy (−75 to −125 mm Hg) until wound contraction.

Key Findings
  • All four patients healed completely, with no recurrence or complications reported.
  • Mean NPWT duration was 18 ± 4.5 days and mean time to epithelialization was 48 ± 14.0 days.
  • Intraoperative ICG fluorescence enabled precise identification and cautery of the responsible lymphatic vessels that conventional ligation had failed to control.
Caveat

This is an uncontrolled four-patient case series with no comparison group, so efficacy relative to standard management cannot be established.

Hand & Peripheral Nerve

8 papers this week

Insights into Cervical Phrenic Nerve Variations Based on Cadaveric Dissection and Intraoperative Electromyography.

Intraoperative EMG detected phrenic nerve variations roughly twice as often as cadaveric dissection, and some accessory branches carried substantial diaphragmatic signal.
Overview

A combined study using cadaveric dissection of 22 sides and intraoperative EMG of 30 sides during contralateral C7 nerve transfer characterized the prevalence and electrophysiology of cervical phrenic nerve variations.

Key Findings
  • Phrenic nerve variation prevalence was 31.8% by anatomical dissection but 63.3% by intraoperative EMG, suggesting dissection underestimates true prevalence.
  • The variant branch most often coursed lateral to the main phrenic nerve (47.4%), overlying the anterior scalene muscle.
  • In 44.4% of cases with recordable signals, the variant amplitude reached ≥50% of the ipsilateral main phrenic nerve amplitude, implying a possible contribution to diaphragmatic innervation.
  • The main phrenic nerve showed larger amplitudes (p<0.001), confirming its role as the primary diaphragmatic motor supply.
Caveat

The sample was small with different denominators for dissection versus EMG, and findings derive from a single surgical model (contralateral C7 transfer), limiting generalizability.

Combined Dorsal Spanning and Volar Plating for Management of Highly Comminuted Distal Radius Fractures.

Combined dorsal spanning plate and volar locking plate fixation achieved union in all highly comminuted distal radius fractures, with favorable functional scores at a mean of nearly three years.
Overview

A prospective cohort of 23 patients with highly comminuted intraarticular distal radius fractures (AO/OTA 23-C2 or 23-C3) underwent combined dorsal spanning plate distraction plus volar locking plate buttressing, with DASH, PRWE, and radiographic outcomes assessed over a mean 30.8-month follow-up.

Key Findings
  • All fractures achieved radiographic union, with restoration of volar tilt, radial inclination, and ulnar variance.
  • Mean DASH was 14.5 ± 11.7 and mean PRWE 17.9 ± 13.8, reflecting favorable functional recovery.
  • The cohort was young (mean age 34.3 years, 69.6% male) and followed for a mean of 30.8 months, providing medium-term data on the staged construct.
Caveat

The small single-arm cohort has no comparison against volar plating or external fixation alone, and the relatively young patient population limits how far the favorable outcomes generalize.

Surgical Technique and Outcomes of Selective Tibial Nerve Transfer Surgery in Foot Drop Patients.

Selective tibial-to-peroneal motor nerve transfer restored functional dorsiflexion in most foot-drop patients, with 77% regaining the ability to walk without an ankle-foot orthosis.
Overview

A retrospective series of 21 patients with severe axonal common peroneal nerve injury underwent selective tibial-to-peroneal motor nerve transfer, with tibialis anterior strength on the MRC scale analyzed over a mean 26.3-month follow-up.

Key Findings
  • Median tibialis anterior strength reached MRC 4.1 (IQR 3–4.5), and 77% of patients achieved MRC ≥3 and walked without an ankle-foot orthosis.
  • Transferring two or more fascicles was associated with significantly greater final tibialis anterior strength than a single fascicle.
  • Adding common peroneal nerve neurolysis at the time of transfer was likewise associated with improved final strength.
Caveat

The retrospective design and small sample of 21 patients without a control group limit causal attribution of the fascicle-number and neurolysis associations.

Treatment of Pediatric Fingertip Amputations by Chest and Palm Subcutaneous Pocket Techniques.

In infants under two with fingertip amputations, chest and palm subcutaneous pocket techniques achieved digit survival in all cases, though partial necrosis occurred in 43%.
Overview

A retrospective series of 6 patients (7 digits) under two years of age with fingertip amputations treated by chest or palm subcutaneous pocketing examined graft survival and its associated factors between 2013 and 2025.

Key Findings
  • All 7 digits survived, although partial necrosis occurred in 3 of them (43%).
  • The complete-recovery group had a longer mean pocketing period (13.5 vs 9.3 days) than digits with partial necrosis.
  • Wet dressing after digit separation tended to be used more frequently in digits that achieved complete recovery.
Caveat

With only six patients and no statistical comparison between groups, the associations between pocketing duration, dressing type, and survival are observational and hypothesis-generating.

In situ and split-thickness grafting for nail bed defects with bone exposure: A retrospective case series.

In situ or split-thickness nail bed grafting achieved excellent or good outcomes in about 91% of fingers with nail bed defects and exposed bone, avoiding flap coverage or amputation.
Overview

A retrospective case series of 28 patients (32 fingers) with nail bed defects and underlying bone exposure treated by in situ or split-thickness autologous nail bed grafting, with outcomes scored across five domains over 12 months of follow-up.

Key Findings
  • Excellent or good outcomes were recorded in 90.6% of fingers (29/32), spanning nail plate appearance, proximal nail fold adherence, and nail bed adherence.
  • Four adverse cases were identified: three score-defined poor outcomes and one good-outcome finger with severe occupational dissatisfaction.
  • No recurrent bone exposure, secondary flap coverage, or digital amputation occurred, and only one poor-outcome case required a secondary outpatient procedure.
Caveat

This was a small single-arm series with no comparison group, so the reported success rate cannot be weighed against flap coverage or other reconstructive alternatives.

Radiographic Morphology of the Proximal and Middle Phalanges and Its Implications for Intramedullary Headless Screw Fracture Fixation.

Intramedullary canal diameter of the finger phalanges varies substantially by digit and sex, such that 2.0- to 3.0-mm headless screws best match most native canals.
Overview

A radiographic morphometric study of 250 digits (125 males, 125 females) measuring intramedullary and cortical dimensions of the proximal and middle phalanges on standardized PA and lateral views, compared against commercially available intramedullary headless screw specifications.

Key Findings
  • On PA views, proximal phalanx isthmus diameter was largest in the thumb (4.8 mm) and smallest in the little finger (2.9 mm), with middle phalanx isthmus ranging 3.4 mm to 2.5 mm.
  • Lateral-view intramedullary diameters were considerably narrower (1.5–2.4 mm) than PA-view diameters.
  • Male participants had significantly larger osseous dimensions across most parameters.
  • Screws ≤3.0 mm matched most middle and ring phalanges, whereas devices ≥3.0 mm were suitable mainly for the thumb and middle-finger proximal phalanges.
Caveat

Measurements were derived from two-dimensional radiographs rather than three-dimensional imaging or cadaveric canals, so projection and rotation could bias the estimated canal diameters.

An Anatomical Equivalence Study of the Capitate and the Second Metatarsal Head as a Donor for Lunocapitate Articular Reconstruction.

The second metatarsal head matches the proximal capitate articular surface in key dimensions, notably radius of curvature, supporting it as a donor for lunocapitate reconstruction.
Overview

A cadaveric equivalence study of 10 capitates and 10 second metatarsals from five specimens comparing articular geometry (head width, length, thickness, and radius of curvature) using paired two one-sided equivalence testing, with 3D surface analysis of a representative specimen for validation.

Key Findings
  • Head width in the frontal view met the predefined equivalence criteria between the capitate and the second metatarsal head.
  • Radius of curvature consistently satisfied equivalence in sagittal analyses across both ipsilateral and crossed (nonipsilateral) orientations.
  • Three-dimensional surface analysis showed close overall surface congruity after rigid registration, corroborating the two-dimensional findings.
Caveat

Findings rest on only five cadavers with mostly two-dimensional photographic measurement, and equivalence of geometry does not establish clinical performance of the graft in vivo.

Hysteresis in dynamic wrist kinematics: a 4DCT comparison between healthy and scapholunate ligament-injured wrists.

Wrists with scapholunate ligament injury showed greater kinematic hysteresis on 4DCT than healthy wrists, suggesting hysteresis could serve as a dynamic marker of carpal instability.
Overview

A 4DCT comparison of healthy versus scapholunate ligament-injured wrists evaluating dynamic hysteresis (the path difference between motion directions) in scapholunate angle and intercarpal distances during radioulnar deviation and flexion-extension, reported as Level III evidence.

Key Findings
  • Hysteresis was greater in scapholunate ligament-injured wrists than in healthy wrists for the scapholunate angle.
  • Injured wrists also showed increased hysteresis in intercarpal distance during both radioulnar deviation and flexion-extension.
  • The authors propose 4DCT-derived hysteresis as a dynamic marker of carpal instability.
Caveat

The available abstract reports no sample size or effect magnitudes and the study is Level III, so the diagnostic accuracy of hysteresis for instability remains unquantified.

Burns & Wounds

9 papers this week

PTEN acts as a master mediator of nonhealing venous leg ulcers by suppressing immune response, angiogenesis, and lymphangiogenesis.

Elevated PTEN appears to drive the nonhealing venous leg ulcer phenotype by suppressing inflammation, angiogenesis, and lymphangiogenesis, and inhibiting it accelerated wound closure in mice.
Overview

A transcriptomic study of chronic venous leg ulcers using bulk and single-cell RNA sequencing to compare healing versus nonhealing ulcers (classified by ≥50% closure over 4 weeks) against acute wounds, complemented by a mouse model of pharmacological PTEN inhibition.

Key Findings
  • Nonhealing ulcers showed marked suppression of inflammatory response, angiogenesis, and lymphangiogenesis, whereas healing ulcers resembled physiological acute-wound healing.
  • Bioinformatic analysis identified PTEN as a master regulator of these pathways, with increased PTEN protein confirmed in nonhealing versus healing ulcers.
  • Pharmacological PTEN inhibition accelerated acute wound closure in mice, enhancing immune response, angiogenesis, and lymphangiogenesis.
Caveat

Causal rescue was demonstrated only in a mouse acute-wound model rather than in human venous leg ulcers, so therapeutic benefit in patients remains unproven.

Cold atmospheric plasma accelerates wound closure and reduces pathogenic bacterial load in diabetic foot ulcers: a randomized controlled trial.

Adding cold atmospheric plasma to standard care sped wound contraction and reduced bacterial load in Wagner grade 2 diabetic foot ulcers compared with standard care alone.
Overview

An open-label randomized controlled trial of 50 patients with Wagner grade 2 diabetic foot ulcers comparing standard care alone versus standard care plus twice-weekly helium-based cold atmospheric plasma over three weeks, with wound size and quantitative bacterial cultures tracked to day 21.

Key Findings
  • The CAP group showed greater wound contraction (1.21 vs 0.79 cm/day) than the control group.
  • Bacterial load fell more in the CAP group (32.8% vs 10.0% reduction) over the study period.
  • CAP significantly reduced counts of all four targeted species (S. aureus, P. aeruginosa, E. coli, E. cloacae), indicating a broad-spectrum antimicrobial effect.
Caveat

The trial was open-label with only 50 patients and just three weeks of treatment, leaving healing durability, ulcer recurrence, and blinding-related bias unaddressed.

Longitudinal Healing and Amputation Trajectories in Diabetic Foot Ulcers: Predictive Power of Wound Area and Duration and Sample-Size Implications From the Diabetic Foot Consortium.

In two large diabetic foot ulcer cohorts, baseline wound area and duration predicted healing, and healing rates have changed little over two decades, with direct implications for trial design.
Overview

A secondary analysis of two prospective cohorts (Open Wound Master Protocol, n=419; c-Myc Biomarker, n=140) from the Diabetic Foot Consortium estimating longitudinal healing and amputation rates and testing baseline wound characteristics as predictors of healing to inform trial sample-size planning.

Key Findings
  • In the Master Protocol cohort, healing reached 26% by week 12 and 49% by week 32, with amputation rates of 4% and 10% respectively.
  • Baseline wound area and duration significantly predicted healing (AUC ≥0.70 by 24 weeks).
  • Predicted healing rates varied by up to 40% between small and large wounds, materially affecting required sample sizes.
  • Contemporary DFU trial designs and healing times have remained largely unchanged over two decades.
Caveat

These are observational cohort analyses rather than a trial, so the predictive models reflect association and may not transfer to populations with different eligibility criteria.

Spooky action at a distance: neuromodulation, physiologic distress signals, and limb preservation.

A range of neuromodulation and regenerative therapies may aid diabetic foot ulcer and limb-threatening ischemia by producing physiologic effects distant from the intervention site, though evidence remains early.
Overview

A narrative review of neuromodulation and regenerative strategies for diabetes-related neuropathy, diabetic foot ulcers, and chronic limb-threatening ischemia, organized around the unifying theme of generating physiologic effects remote from the primary intervention site.

Key Findings
  • High-frequency (10-kHz) spinal cord stimulation is highlighted for pain relief and sensory improvement in refractory painful diabetic neuropathy.
  • Peripheral and splenic-targeted focused ultrasound and remote ischemic conditioning are described as reducing systemic inflammation and enhancing microcirculation and wound repair.
  • Surgical options such as tibial transverse transport and lateral tibial periosteum distraction are presented as stimulating angiogenesis and distal limb perfusion.
Caveat

This is a narrative review of largely early-phase evidence with no pooled or quantitative synthesis, and the authors themselves note that larger randomized trials are still needed to confirm efficacy.

Medical response framework for catastrophic burn and radiation mass casualties after a potential Ukraine nuclear event.

Presents a strategic civilian readiness plan for treating combined burn and radiation casualties after a possible tactical nuclear detonation in Ukraine, extrapolated from Hiroshima- and Nagasaki-scale data.
Overview

A multidisciplinary expert working-group framework (the USAID Burn Blast Injury Working Group) synthesized historical casualty data from the 1945 Hiroshima and Nagasaki bombings, scaled to modern moderate-yield tactical weapons, and combined it with population-impact models to derive a hypothetical survivor cohort and an actionable large-scale medical response plan.

Key Findings
  • The plan was developed by the Burn Blast Injury Working Group, convened by USAID in February 2023 as a multidisciplinary panel spanning burns, trauma, radiation injury, disaster management, public health, and policy.
  • Historical bombing data were selected because the 1945 detonations were comparable in scale to modern 1–20 kiloton tactical nuclear weapons, and were supplemented with population-impact models to estimate survivors requiring care.
  • Although developed for the Ukraine conflict, the authors frame the concepts as a generalizable starting point for any region at heightened risk of a catastrophic nuclear event.
Caveat

This is a conceptual planning and consensus document built on 80-year-old bombing data and modeling assumptions, not an empirical study, so its casualty estimates and response assumptions remain unvalidated against modern outcomes.

Reconstruction of the Burned Nose Using an Expanded Skin-Grafted Forehead Flap, Delayed Turnover Flaps, and Indocyanine Green Perfusion Assessment.

Demonstrates that previously skin-grafted forehead and nasal tissue can be recruited for staged total reconstruction of the lower nose, restoring contour and airway without free tissue transfer and remaining stable at 10 years.
Overview

A single case report describes a 35-year-old man who, after an approximately 20% TBSA flame burn, developed a severe postburn deformity with loss of the lower third of the nose and prior skin grafting of both forehead and nasal dorsum, treated by staged reconstruction with an expanded grafted forehead flap, delayed turnover flaps for lining, costal cartilage grafts, and a paramedian forehead flap.

Key Findings
  • Reconstruction combined tissue expansion of the grafted forehead, delayed bipedicled turnover flaps from grafted dorsal skin for internal lining, costal cartilage for structural support, and a paramedian forehead flap for external coverage.
  • Intraoperative indocyanine green fluorescence angiography was used to assess perfusion and guide operative decision-making in the previously grafted, scarred tissues.
  • The reconstruction restored nasal contour and airway patency without flap loss, infection, or major complication, and remained stable at long-term follow-up extending to 10 years.
Caveat

This is a single-patient case report with no comparison group, so the favorable outcome may not generalize to other patients or reconstructive teams.

The Use of Adipose Derived Stem Cells in Chronic Wound Healing.

Suggests that adipose-derived stem cell therapy substantially increases the likelihood of chronic wound healing and shortens time to healing across wounds of multiple etiologies.
Overview

A systematic review and meta-analysis of 10 comparative studies (N=498) pooled data on adipose-derived stem cell (ADSC) treatment versus controls for chronic wounds of any aetiology, assessing short-term healing and time to healing.

Key Findings
  • ADSC-treated patients were more likely to heal at short-term follow-up, with an odds ratio of 6.54 (95% CI 3.80–11.27; I2 = 0%).
  • Treated wounds also healed significantly faster than controls, with a mean difference of -1.90 (95% CI -2.28 to -1.51).
  • GRADE assessment rated the pooled evidence as moderate certainty, and the authors characterized ADSC therapy as safe.
Caveat

The analysis rests on only 10 mostly small studies totaling 498 patients with heterogeneous wound aetiologies, and the very large odds ratio raises the possibility of small-study or publication effects.

Prognostic Value of Mortality Scoring Systems in Patients With Severe Burns: Identifying Key Predictors of Mortality and Comparative Analysis Between Survivors and Non-Survivors.

In severe burns, a simple clinical model using age, total body surface area, and inhalation injury predicted mortality about as well as established composite burn scores.
Overview

A retrospective analysis of 144 adult ICU burn patients compared a baseline clinical model (age, TBSA, inhalation injury) against the TBSA, revised Baux, ABSI, BOBI, and BUMP scores for mortality prediction, using ROC curves and DeLong comparisons.

Key Findings
  • Overall mortality was 43.1%; non-survivors were older (59.2 vs 46.5 years), had larger burned surface area (42.3% vs 35.3%), and more often had inhalation injury (59.7% vs 26.8%).
  • The baseline clinical model showed excellent discrimination (AUROC 0.87), with the revised Baux highest among the scores at 0.86 and BOBI and BUMP both at 0.83.
  • Pairwise DeLong comparisons showed no statistically significant differences between the best-performing scoring systems and the clinical model.
Caveat

This was a single-center retrospective study of 144 patients with an unusually high 43% mortality rate, and the models were not externally validated.

Tibial cortex transverse transport-derived small extracellular vesicles promote diabetic wound healing by enhancing angiogenesis and suppressing inflammation.

In a diabetic rat model, small extracellular vesicles from tibial cortex transverse transport appear to mediate its wound-healing benefit by enhancing angiogenesis and suppressing inflammation.
Overview

A preclinical rat study examined whether plasma-derived small extracellular vesicles (sEVs) mediate the effect of tibial cortex transverse transport (TTT) on diabetic wound healing, combining in vitro HUVEC and macrophage assays with in vivo delivery of TTT-sEVs in a PF127 hydrogel.

Key Findings
  • TTT accelerated wound healing, enhanced angiogenesis, and reduced inflammation, whereas inhibition of sEV release attenuated these effects.
  • TTT-sEVs promoted endothelial proliferation, migration, and tube formation, upregulated pro-angiogenic factors, and suppressed inflammatory mediators in macrophages.
  • In vivo delivery of TTT-sEVs via an sEV-loaded PF127 hydrogel markedly improved diabetic wound healing and angiogenic responses.
Caveat

This is an animal and cell-culture study only, so the mechanistic and therapeutic findings have not been tested in human patients.

Breast

10 papers this week

Immediate versus DElayed AutoLogous Breast REconstruction and postmaSTectomy radiotherapy (IDEAL BREAST) The IDEAL reconstruction-radiotherapy timing.

In autologous breast reconstruction requiring postmastectomy radiotherapy, immediate and delayed reconstruction showed comparable complication rates and comparable long-term quality of life.
Overview

A retrospective and cross-sectional multicenter cohort of 1,095 reconstructions in 793 patients compared immediate versus delayed autologous breast reconstruction, stratified by receipt of postmastectomy radiotherapy, with major and minor complications and BREAST-Q outcomes as endpoints.

Key Findings
  • Among irradiated patients, major complication rates were not significantly different between immediate (6.4%) and delayed (3.5%) reconstruction (p=.29), with similar findings for minor complications.
  • At a median BREAST-Q follow-up of 5.0 years, irradiated immediate and delayed reconstruction yielded comparable health-related quality of life across all domains.
  • On multivariate analysis, current smoking was an independent risk factor for complications in unirradiated patients, while harvesting multiple perforators was associated with reduced risk.
Caveat

Because treatment was assigned by shared decision-making rather than randomization, the immediate and delayed groups may differ in unmeasured ways, and the BREAST-Q data were collected cross-sectionally.

A Prospective, Multicenter Randomized Controlled Trial (RCT) of the da Vinci SP® Surgical System versus Open Surgery in Nipple-Sparing Mastectomy (NSM) Procedures for Patients with Breast Cancer.

Robotic single-port nipple-sparing mastectomy achieved margin status and complication rates comparable to open surgery, at the cost of longer operative times.
Overview

A multicenter randomized controlled trial of 74 patients (131 mastectomies) randomized women with early-stage breast cancer 1:1 to robotic (da Vinci SP) versus open nipple-sparing mastectomy with immediate implant reconstruction, with primary endpoints of conversion, 42-day adverse events, and positive margin rates.

Key Findings
  • Operative time was longer for robotic surgery (141.6 versus 83.9 minutes), with no conversions to open surgery.
  • Positive surgical margin rates were identical (six patients each), and nipple-areolar preservation at 42 days was 100% robotic versus 98.5% open.
  • Serious adverse events (3 robotic vs 8 open) and BREAST-Q scores favored robotic surgery, but these differences were not statistically significant.
Caveat

The small sample limits statistical power, and the longer robotic operative times together with the more favorable but non-significant robotic outcomes may reflect early experience with the technique.

Biologic versus synthetic meshes in irradiated implant-based breast reconstruction: A systematic review and meta-analysis.

In irradiated implant-based breast reconstruction, biologic and synthetic meshes showed comparable complication rates, while subpectoral placement and preoperative radiotherapy predicted more implant loss.
Overview

A systematic review and meta-analysis of 51 studies compared biologic versus synthetic mesh in irradiated patients undergoing implant-based breast reconstruction, with multivariate models adjusting for mesh type, implant plane, and radiotherapy timing.

Key Findings
  • Pooled complication rates were 33% for biologic mesh and 30% for synthetic mesh, with no significant difference between mesh types.
  • Subpectoral placement was associated with higher odds of implant loss (OR 2.32, 95% CI 1.24–4.33) and capsular contracture (OR 2.91, 95% CI 1.22–6.95) compared with prepectoral placement.
  • Preoperative radiotherapy was linked to increased implant loss (OR 1.89, 95% CI 1.21–2.94), while mesh type did not significantly affect capsular contracture, implant loss, seroma, or necrosis.
Caveat

The analysis pooled heterogeneous, largely observational studies, and the wide confidence interval for the synthetic mesh complication rate (13–56%) reflects sparse and imprecise data for that group.

Prophylactic absorbable antibiotic-loaded cement and oral antibiotics for breast reconstruction: A multi-institutional study.

Adding two weeks of postoperative oral antibiotics to absorbable antibiotic-loaded cement did not reduce infection or tissue-expander loss in prepectoral breast reconstruction.
Overview

A multi-institutional retrospective study of 253 patients (402 breasts) undergoing immediate prepectoral tissue-expander reconstruction with absorbable antibiotic-loaded calcium sulfate cement compared outcomes without postoperative oral antibiotics (178 patients) versus with 2 weeks of oral antibiotics (75 patients), all receiving perioperative IV antibiotics.

Key Findings
  • Surgical-site infection occurred in 1.1% versus 2.3% of patients without versus with postoperative oral antibiotics (p=0.39).
  • Tissue-expander removal was performed in 2.2% versus 6.2% of patients without versus with oral antibiotics (p=0.075).
  • The authors concluded that oral antibiotics provide no synergistic effect when combined with antibiotic-eluting absorbable cement, supporting omission of postoperative oral antibiotics.
Caveat

This was a non-randomized retrospective comparison with markedly unequal group sizes, and the numerically higher (though non-significant) complication rates in the oral-antibiotic group could reflect confounding by indication.

Infection Outcomes in Implant-Based Breast Reconstruction: Five-Year Experience with the GAPS Protocol.

A structured 12-step perioperative infection-prevention protocol was associated with lower surgical-site infection after implant-based breast reconstruction, though the effect weakened after full adjustment.
Overview

A quasi-experimental prospective cohort of 915 patients (1,500 breasts) with historical controls evaluated the 12-step GAPS protocol (gloves, antimicrobial soak, pocket irrigation, sterile field) for reducing surgical-site infection after immediate implant-based breast reconstruction at a single academic health system.

Key Findings
  • The protocol cohort had lower SSI than historical controls, 5.7% versus 8.7% (p=.03), with an unadjusted relative risk of 0.66 (95% CI 0.45–0.96).
  • The protective effect remained directionally consistent across single-covariate adjustments (RR range 0.57–0.76), but the fully adjusted total effect of RR 0.76 (95% CI 0.50–1.15) crossed 1.
  • Protocol adherence was approximately 80%, with an absolute risk reduction of 2.96% and a number needed to treat of 34.
Caveat

This was a non-randomized before-after design relying on historical controls, and because the fully adjusted estimate was not statistically significant, temporal confounding cannot be excluded.

Extreme Oncoplasty: Avoiding Mastectomy and Expanding the Limits of Breast Conservation-A Comparative Study of 718 Patients.

Extreme oncoplastic breast conservation for tumors larger than 50 mm achieves 5-year local recurrence (3.37% vs 1.44%) and survival outcomes comparable to standard oncoplasty in appropriately selected patients.
Overview

A single-institution prospective oncoplastic database (2008–2025) was queried to compare recurrence and survival between large, multifocal/multicentric tumors and standard tumors, all treated with reduction mammoplasty and whole breast irradiation, in a comparative study of 718 patients (340 with tumors >50 mm vs 378 with tumors ≤50 mm).

Key Findings
  • Negative margins were slightly less frequent with extreme tumors (92.6% vs 96.8%; p = 0.01), and re-excision was roughly twice as common in the extreme group (10.9% vs 5.6%; p = 0.01).
  • The 5-year local recurrence probability was 3.37% for extreme versus 1.44% for standard cases, a difference that did not reach statistical significance (p = 0.067).
  • Distant recurrence, breast cancer-specific survival, and overall survival did not differ significantly between the two groups.
Caveat

This is a nonrandomized comparison drawn from a single-institution database over a 17-year accrual, so unmeasured selection of technically favorable cases and the borderline local-recurrence signal (p = 0.067) warrant caution.

Use of Absorbable Antibiotic Delivery Beads in Implant-Based Breast Reconstruction.

Adding absorbable vancomycin/gentamicin beads to the implant pocket was associated with roughly half the infection rate (9.3% vs 21.4%) and far less reconstructive loss (4.0% vs 18.0%).
Overview

A single-institution retrospective cohort of 415 patients (709 breasts) undergoing tissue-expander implant-based reconstruction with acellular dermal matrix compared reconstructions with absorbable calcium sulfate beads containing vancomycin and gentamicin placed in the pocket (206 patients) against reconstructions without beads (209 patients), with both cohorts receiving standardized perioperative antibiotics.

Key Findings
  • The infection rate was less than half that of controls (9.3% vs 21.4%; p < 0.0001).
  • Total reconstructive loss fell from 18.0% in controls to 4.0% with beads (p < 0.0001).
  • Reconstructive loss attributable to infection was likewise lower with beads (2.3% vs 14.0%; p < 0.0001).
Caveat

Because this is a nonrandomized retrospective comparison, the unusually high 21.4% control infection rate and unmeasured differences between cohorts could exaggerate the apparent benefit.

Antibiotic Prophylaxis in Prepectoral Alloplastic Breast Reconstruction: Establishing Standards.

Extending postoperative antibiotic prophylaxis beyond 24 hours did not lower infection rates after prepectoral expander/implant reconstruction.
Overview

A high-volume single-center retrospective cohort of 748 women undergoing immediate prepectoral tissue expander/implant placement with acellular dermal matrix (2015–2025) compared 24 hours of prophylactic antibiotics against extended prophylaxis up to 72 hours, with 222 patients per arm after propensity-score matching.

Key Findings
  • 30-day surgical site infection rates showed no significant difference between matched cohorts (odds ratio 1.13, 95% CI 0.43–2.98).
  • 90-day infection rates were also comparable across cohorts (odds ratio 1.67, 95% CI 0.85–3.28).
  • Successful salvage of infected breasts with antibiotics alone versus surgical washout did not differ between groups (odds ratio 0.8, 95% CI 0.2–3.8).
Caveat

This is a retrospective single-center comparison, and the wide confidence intervals indicate limited power to exclude a small protective effect of extended prophylaxis.

Oncoplastic Breast Reconstruction With J-scar Mammaplasty: Outcomes and Versatility of an Innovative Technique.

J-scar oncoplastic reduction mammaplasty was applied across a broad range of breast shapes and tumor locations with a low overall complication rate of 7%.
Overview

A single-institution retrospective case series of 157 patients who underwent quadrantectomy with J-scar (J-mammaplasty) level II oncoplastic reduction over 3 years reported demographics, breast morphology, procedure-specific variables, and surgeon- and patient-reported outcomes at a minimum of 12 months.

Key Findings
  • The overall complication rate was 7%, below the up-to-16% rate the authors cite as acceptable for oncoplastic surgery.
  • The technique was applied across large breasts and third-degree ptosis as well as varied tumor locations, with lateral quadrants most common.
  • At a minimum of 12 months, surgeon- and patient-reported outcomes indicated high satisfaction.
Caveat

This is a single-surgeon, single-technique case series with no comparison group, and satisfaction was not captured with a validated instrument, limiting external validity.

Does oncological necessity compromise patient-reported outcomes? A comparative study of reduction mammoplasty pedicles versus elective procedures.

Oncoplastic reduction achieved BREAST-Q satisfaction comparable to elective reduction when a superomedial pedicle was used, whereas the inferior pedicle showed no significant satisfaction gains.
Overview

A retrospective comparative study of 187 patients compared bilateral oncoplastic reduction mammoplasty using superomedial (Group 1) or inferior (Group 2) pedicles against bilateral benign superomedial reduction (control), using pre- and postoperative BREAST-Q scores.

Key Findings
  • Controls and the superomedial (Group 1) cohort improved across all BREAST-Q domains, whereas the inferior-pedicle (Group 2) cohort showed no significant gains in breast satisfaction or psychosocial well-being.
  • Breast satisfaction was significantly higher in controls than in the inferior-pedicle group (p = 0.005).
  • Sexual well-being ranked highest in controls, then superomedial, and lowest with the inferior pedicle (p < 0.001).
  • Tumor location was the primary driver of pedicle selection (p < 0.001), and oncoplastic patients were older with higher BMI.
Caveat

This is a small, retrospective, Level III comparison in which pedicle choice was dictated by tumor location rather than randomized, so tumor and patient factors are confounded with the observed satisfaction differences.

Aesthetic

10 papers this week

Clarification and Classification of Dorsal Preservation Rhinoplasty: Lessons from a Continuous 1,191-Case Experience.

Revision rates after dorsal preservation rhinoplasty followed a U-shaped learning curve, peaking at 9.9% during uncontrolled expansion of indications and falling to 3.3% after a unified selection framework.
Overview

A single-surgeon series of 1,191 consecutive primary rhinoplasties (2010–2024) was analyzed as three chronological series to compare revision rates and clinical lessons as dorsal preservation techniques were introduced, expanded, and then consolidated under a unified framework.

Key Findings
  • Revision rates rose from 3.4% in the initial series to 9.9% during uncontrolled expansion of indications, then fell to 3.3% after refinement (χ² = 21.61, p < 0.001).
  • The authors characterize the trajectory as a U-shaped learning curve: proof-of-concept, over-extension, then consolidation.
  • The final series applied a pyramidal classification with W-point septoplasty modulators to standardize terminology, technique, and patient selection.
Caveat

Findings come from one senior surgeon's consecutive cases compared across time periods, so improving revision rates reflect accumulating experience as much as the framework itself, with no independent or comparative control.

Safety and Efficacy of TrenibotulinumtoxinE for Moderate-to-Severe Glabellar Lines: A Phase 2b, Double-Blind, Placebo-Controlled, Dose-Escalation Study.

TrenibotulinumtoxinE improved moderate-to-severe glabellar lines in a dose-dependent way with onset as early as 8 hours, though the effect largely faded by two weeks.
Overview

In a Phase 2b, double-blind, placebo-controlled, dose-escalation trial, adults with moderate-to-severe glabellar lines were randomized 3:1 to trenibotulinumtoxinE or placebo across five dosage cohorts (five glabellar injections on Day 1) and followed through Day 42, with the primary endpoint being cumulative ≥2-grade improvement through Day 7.

Key Findings
  • All five dosage cohorts outperformed placebo cumulatively through Day 7, with responder rates rising with dose from 40.6% (Cohort 1) to 96.8% (Cohort 5).
  • Effect had rapid onset at the highest dose (16.1% responders by 8 hours, 41.9% by 24 hours) and peaked at 93.3% on Day 7.
  • Efficacy was short-lived, declining to 33.3% between Day 14 and Day 42.
  • No serious adverse events were reported, and no findings suggested local diffusion or distant toxin spread.
Caveat

As a 42-day dose-finding study without an active comparator, it cannot establish how trenibotulinumtoxinE's notably short duration of effect compares with conventional botulinum toxins in practice.

A Multicenter Cohort Study of 3805 RibXcar Cases: Safety and Efficacy in Incisionless Rib Remodeling.

Incisionless ultrasound-guided rib remodeling was associated with a mean waist reduction of about 11 cm at one year, with rare major complications such as pneumothorax and hemothorax.
Overview

A multicenter cohort of 3805 female patients (aged 18–45, 8 countries, Oct 2022–Dec 2023) undergoing percutaneous ultrasound-guided rib remodeling (RibXcar) with or without liposuction was followed for 1 year to assess waist circumference change, rib angular variation, complications, and BODY-Q satisfaction.

Key Findings
  • At 1 year the mean waist reduction was 11 cm, with a mean rib angular reduction of about 10 degrees for ribs 10–12.
  • Major complications were rare: 4 pneumothoraces and 1 hemothorax across the 3805 patients.
  • Minor complications included 2 cases of chronic pain associated with bicortical fractures.
Caveat

This is a single-arm cohort with no comparison group, and because many patients also underwent liposuction, the reported waist reduction cannot be attributed to rib remodeling alone.

Lower Eyelid Fat Pad Transfer and Upper Eyelid Blepharoplasty for Simultaneous Correction of Tear Trough and Sunken Upper Eyelid Deformities.

In patients with coexisting tear trough and sunken upper eyelid deformities, adding lower eyelid fat transfer to upper blepharoplasty in a single stage suggests greater upper eyelid improvement than orbital fat release alone.
Overview

A single-institution retrospective study of 37 female patients compared upper eyelid surgery using isolated orbital fat release (n=13) versus orbital fat release combined with lower eyelid fat transfer (n=24), applying Park's and Hirmand grading and the FACE-Q to assess periorbital esthetics, well-being, and satisfaction.

Key Findings
  • Both groups showed significant improvements in eyelid esthetics and aging-appraisal VAS scores (p < 0.001).
  • The fat release with transfer group achieved greater improvement in upper eyelid appraisal than fat release alone (p < 0.05).
  • Minor complications occurred in six eyelids (8.1%) and resolved with conservative management, with a low 10.8% loss to follow-up.
Caveat

The cohort was small (37 patients), retrospective, and nonrandomized with unequal group sizes and short follow-up, which limits any causal comparison between the two techniques.

Frontal Bone Contouring and Forehead Lifting: A Retrospective Study on Aesthetic and Functional Outcomes.

Frontal bone contouring with forehead lifting is associated with a clinically meaningful reduction in frontal headache severity, with median worst pain falling from 7 to 2 postoperatively.
Overview

A retrospective cohort of 39 patients undergoing frontal bone contouring and forehead lifting (2022–2024) assessed pre- and postoperative headache with the validated Persian Brief Pain Inventory and related intraoperative maneuvers (frontal recess widening, supraorbital nerve decompression) to outcomes.

Key Findings
  • All pain measures improved significantly, with median worst pain falling from 7 to 2 and average pain from 5 to 0 (p < 0.001).
  • Total pain intensity dropped from 4.66 to 0.66 and pain interference resolved to a median of 0 (p < 0.001).
  • Subgroup analysis showed a trend toward greater improvement with frontal recess widening or supraorbital nerve decompression, though limited by sample size.
Caveat

This was a small, retrospective, single-arm study with no control group, so the headache improvements cannot be separated from placebo effect or regression to the mean.

Intravascular behavior of cutaneous polynucleotide injectables following intra-arterial exposure.

In a rabbit ear-artery model, intra-arterial injection of polynucleotide fillers produced only transient flow disturbance without persistent emboli or tissue necrosis, whereas cross-linked hyaluronic acid caused persistent emboli and extensive necrosis.
Overview

A controlled rabbit central ear-artery study compared intra-arterial injection of three polynucleotide formulations of differing viscosity (Rejuran S, Rejuran HB Plus, Conjuran) against normal saline and cross-linked hyaluronic acid, assessing arterial flow, 24-hour emboli, clinical ischemia, and histopathology.

Key Findings
  • Among polynucleotides, Conjuran (higher-viscosity) showed the most frequent transient arterial occlusion, followed by Rejuran HB Plus, with Rejuran S the least.
  • All polynucleotide-related flow disturbances were transient, with no emboli at 24 hours and no ischemia, necrosis, vasculitis, or vasculopathy by day 7.
  • In contrast, cross-linked hyaluronic acid produced persistent intravascular emboli and extensive tissue necrosis.
Caveat

This is a small-animal (rabbit ear) model without reported per-group sample sizes, so species and vascular anatomy differences mean the findings may not translate to human intra-arterial filler complications.

Liposuction and Skin Tightening by Plastic Internal Low-angular Retraction Technique to Direct Skin Retraction with Monopolar Radiofrequency.

A subdermal radiofrequency method (the PILAR technique) achieved skin retraction during liposuction using roughly half the energy of conventional RF-assisted liposuction, with comparable contouring.
Overview

A prospective observational cohort of 100 patients undergoing liposuction (2022–2024) compared conventional RF-assisted liposuction (n=36) with the plastic internal low-angular retraction (PILAR) technique (n=64), evaluating energy delivery, device time, complications, and BODY-Q satisfaction.

Key Findings
  • The PILAR technique used significantly less total energy than conventional RF (44,195 J versus 84,939 J; P < 0.001).
  • Weight reduction was comparable between groups.
  • The authors reported reduced complication rates and high patient satisfaction with PILAR, though these outcomes were not quantified in the results.
Caveat

This was a nonrandomized observational cohort with unequal groups and no complication or satisfaction figures reported in the results, so between-group differences could reflect selection or surgeon preference rather than the technique itself.

Preservation Rhinoplasty: A Decade of Progress and Technical Refinement.

This narrative review argues that preservation rhinoplasty has matured into an established philosophy that yields stable, reliable results while reducing the secondary deformities associated with structural (deconstruction-reconstruction) rhinoplasty.
Overview

This narrative review and historical synthesis traces the development of preservation rhinoplasty over roughly eight years, describes the prevailing techniques in a logical learning order for the novice surgeon, and summarizes known complications and pitfalls.

Key Findings
  • The philosophy centers on preserving the natural dorsum and osseocartilaginous vault rather than resecting and rebuilding it, aiming to minimize secondary deformity.
  • Techniques have become more accessible over the past five years through textbooks, journal articles, and in-person courses.
  • The article organizes techniques for progressive learning and reviews known complications and pitfalls of the approach.
Caveat

This is a Level 5 narrative review reflecting expert opinion and selected literature rather than a systematic comparison, and it does not provide pooled or controlled outcome data against structural rhinoplasty.

Autologous Fat Grafting Versus Facial Fillers in Facial Cosmesis: A Systematic review and Meta-analysis.

Pooled data suggest autologous fat grafting yields higher patient satisfaction than hyaluronic acid fillers for facial rejuvenation, but the effect was imprecise and did not reach statistical significance.
Overview

A PRISMA-aligned meta-analysis of 9 comparative studies (n=805) pooled patient-satisfaction outcomes for autologous fat grafting versus facial (mainly hyaluronic acid) fillers using random-effects standardized mean differences.

Key Findings
  • Autologous fat grafting showed higher satisfaction than hyaluronic acid fillers (SMD 0.91), but the 95% CI (−0.32 to 2.14) crossed zero, indicating no statistically significant difference.
  • Between-study heterogeneity was extreme (I² = 97%), and subgroup analyses were directionally consistent but did not explain the variability.
  • Egger's test suggested possible small-study effects (p = 0.15), though interpretation is limited with fewer than 10 studies.
Caveat

Extreme heterogeneity (I² = 97%) and a confidence interval crossing zero make the pooled estimate unstable, so the claim of fat grafting superiority rests on inconsistent, low-numbered comparative studies rather than randomized trials.

Grading and Management of Puffy Eyelids.

A severity-based grading of puffy eyelids matched to either a three-point or incision blepharoplasty technique achieved high satisfaction with a very low revision rate.
Overview

A retrospective analysis of 132 patients with puffy eyelids undergoing double-eyelid blepharoplasty classified deformities as mild, moderate, or severe and selected the three-point or incision (orbital septum) method by grade to target orbital fat and ROOF, with 3-month to 1-year follow-up.

Key Findings
  • Of 132 patients, 68 were mild, 34 moderate, and 30 severe; all severe cases were treated by the incision method, while milder grades used either technique.
  • Only one patient required revision surgery, with an overall satisfaction rate of 99.24%.
  • There were no serious complications such as hematoma or infection, and all scars healed well.
Caveat

This is a single-center retrospective case series with no comparison group and largely subjective satisfaction outcomes, so the grading system's reproducibility and its advantage over technique selection by surgeon judgment were not tested.

Sarcoma & Oncology

3 papers this week

Improved Oncologic Outcomes with Trimodality Therapy for Radiation-Associated Angiosarcoma of the Breast.

In radiation-associated angiosarcoma of the breast, trimodality therapy was associated with markedly higher 8-year recurrence-free and overall survival than surgery with or without chemotherapy.
Overview

A single-institution retrospective cohort of 43 patients with radiation-associated angiosarcoma of the breast (2000–2025) compared trimodality therapy (n=24: induction chemotherapy, preoperative chemoradiation, and wide resection with flap closure) with mono/dual therapy (n=19: surgery ± chemotherapy), estimating survival by Kaplan-Meier.

Key Findings
  • Eight-year recurrence-free survival was 96% with trimodality therapy versus 50% with mono/dual therapy (p = 0.002).
  • Eight-year overall survival was also higher with trimodality therapy (94% versus 65%; p = 0.047).
  • By design, all trimodality patients received chemotherapy, chemoradiation, and wide resection, whereas no mono/dual patient received radiation and only 47% received chemotherapy.
Caveat

This is a small, retrospective, single-center cohort in a rare disease with nonrandomized treatment allocation, so healthier patients able to tolerate trimodality therapy may account for part of the survival advantage.

Current Operating Procedure (COP) for the Treatment of Slow-Flow Vascular Malformations with Bleomycin Electrosclerotherapy (BEST).

Presents a standardized, ultrasound-guided protocol for bleomycin electrosclerotherapy that clinical experience suggests shrinks slow-flow vascular malformations using lower cumulative bleomycin doses and fewer sessions than conventional sclerotherapy.
Overview

A standardized consensus operating protocol developed by the International Network for Sharing Practices on Electrochemotherapy (InspECT) and collaborating centers for treating slow-flow vascular malformations. It codifies patient selection, imaging, anesthesia, lesion access, drug preparation, dosing, electrode selection, electrical parameters, and post-procedural care.

Key Findings
  • After intralesional bleomycin, reversible electroporation enhances drug uptake through a vascular lock effect and endothelial disruption, building on electrochemotherapy principles and the reported selective sensitivity of dysplastic, proliferative endothelium.
  • The procedure is delivered under ultrasound guidance using Cliniporator-validated ESOPE pulse parameters.
  • It is positioned as suited to venous, lymphatic, capillary, and mixed slow-flow malformations, including primary, resistant, or recurrent lesions where intralesional injection and safe electrode placement are feasible.
  • Clinical experience is cited as showing effective lesion reduction with lower cumulative bleomycin doses and fewer treatment sessions than conventional bleomycin sclerotherapy.
Caveat

This is an expert consensus protocol rather than a comparative outcome study, so the claimed advantages over conventional sclerotherapy rest on clinical experience rather than controlled trial data.

Meshed advancement flap for medium-sized vulvar defects after tumor excision.

In three women, a staged meshed advancement flap reconstructed intermediate-width superficial vulvar defects with short operative times and no major complications or recurrence over five years.
Overview

A case series of 3 women who underwent staged reconstruction with a meshed advancement flap after vulvar tumor excision. Following temporary coverage with artificial dermis, reconstruction was performed 21–25 days later once tumor-free margins were confirmed, for defects measuring 3 × 7, 3 × 5, and 4 × 10 cm.

Key Findings
  • Reconstruction operative time was 30–40 minutes across the three cases.
  • Complete epithelialization occurred 10–14 days after reconstruction, with a hospital stay of 5–10 days for the reconstructive stage.
  • The authors observed no major complications or local recurrence during five years of follow-up.
Caveat

This is an uncontrolled series of only three selected patients, so it cannot establish generalizability or comparative benefit over skin grafting or wider flap techniques.

Artificial Intelligence in Surgery

5 papers this week

Artificial Intelligence for Automated Current Procedural Terminology Coding in Plastic and Reconstructive Surgery Using a Fine-tuned Hybrid Large Language Model.

A fine-tuned, domain-specific language model (ProCode) coded plastic surgery operative reports more accurately than baseline LLMs and professional human auditors, with the widest margin on complex multi-code procedures.
Overview

A retrospective comparative study of 120 operative reports evaluating CPT code-set accuracy across baseline LLMs (OpenAI, Gemini, Anthropic), external professional auditors, and a fine-tuned hybrid LLM system (ProCode), using expert consensus coding as the reference standard. Reports were stratified by complexity into low (1–2 codes), medium (3 codes), and high (≥4 codes), with 40 cases each.

Key Findings
  • ProCode achieved the highest accuracy at every complexity tier: 100% (low), 80% (medium), and 80% (high).
  • Baseline LLM accuracy declined noticeably as coding complexity increased.
  • ProCode outperformed both human auditors and baseline LLMs, with differences in correctness significant overall and within each complexity tier (all P < 0.05).
Caveat

This single-cohort retrospective evaluation of 120 reports scored only exact code-set agreement against expert consensus, which may not reflect real-world billing acceptability or performance across institutions.

Surgeon-Created Digital Twin: AI-Generated Video Avatars for Plastic Surgery Education.

Demonstrates that a board-certified plastic surgeon can train an AI video avatar (a digital twin) to deliver educational and patient-facing content in the surgeon's own likeness.
Overview

A proof-of-concept demonstration in which a board-certified plastic and reconstructive surgeon trained an AI-generated video avatar to deliver educational content. The report frames avatar technology for patient education, virtual consultation, and content creation while addressing authenticity and ethics.

Key Findings
  • An AI-generated video avatar trained on a real board-certified surgeon delivered educational material with minimal time constraints and a realistic human presenter.
  • The authors position the method for patient education, virtual consultation, and content creation or marketing in plastic surgery.
  • The article foregrounds deepfake and authenticity concerns, emphasizing professional standards and ethical integrity when using synthesized likenesses.
Caveat

This is a single-avatar demonstration with no comparison group or outcome measurement, so educational effectiveness, patient comprehension, and safety remain untested.

AI-Generated Microlearning for Plastic Surgery Residency: Single-Arm Pre-Post Feasibility Study.

A single-arm pilot found AI-generated microlearning modules feasible and acceptable for plastic surgery residents, with preliminary gains in self-perceived confidence that were largest in the weakest baseline topic.
Overview

A single-arm pre-post feasibility study of 11 residents at one academic plastic surgery program over 12 weeks, delivering six microlearning modules built with Google Gemini 2.5 Pro. Outcomes included acceptability, faculty content evaluation, item psychometrics, and pre-post self-perceived knowledge and confidence.

Key Findings
  • Acceptability was high across all six subitems (medians ≥5/7) and faculty rated content quality at 4.68/5, though interrater reliability was poor (ICC 0.231).
  • Among nine matched pairs, composite confidence improved significantly (median change 0.33; d = 0.65; P = .047), while composite knowledge showed a medium effect that did not reach significance (d = 0.71; P = .09).
  • The largest gains appeared where baseline was lowest, in hand surgery knowledge (d = 1.48; P = .02) and confidence (d = 1.41; P = .02).
Caveat

With no control group, only 11 residents, and outcomes based on self-perceived rather than objectively tested knowledge, the study cannot demonstrate actual learning gains.

Machine Learning for Wound Management: A Structured Narrative Review of Applications, Challenges, and Prospects.

A structured review maps how machine learning is being applied across wound care while highlighting that dataset and validation gaps still prevent clinically deployable tools.
Overview

A structured narrative review of machine learning and deep learning methods in wound management. It summarizes commonly used architectures, data modalities, and evaluation strategies, then critically discusses barriers to clinical adoption and emerging directions.

Key Findings
  • Reported applications span wound detection, segmentation, tissue characterization, infection assessment, and healing prediction, drawing on wound images, clinical records, and sensor-derived data.
  • Persistent barriers include limited dataset size and diversity, annotation inconsistency, bias, poor generalizability, and a lack of external and prospective validation, alongside privacy, regulatory, and workflow challenges.
  • Highlighted opportunities include multimodal learning, self-supervised learning, federated learning, explainable AI, and wearable continuous monitoring.
Caveat

As a narrative rather than systematic review, it lacks a reproducible search strategy, quantitative pooling, or formal bias assessment, so coverage reflects the authors' selection.

Publicly Accessible Large Language Model Responses to Frequently Asked Questions About Spondylodiscitis: Preliminary Expert Evaluation.

In a preliminary expert evaluation, publicly available language models gave mostly satisfactory answers to spondylodiscitis patient FAQs, though a substantial minority needed clarification and treatment and prognosis questions scored lowest.
Overview

A preliminary expert evaluation of 210 LLM responses in which seven blinded board-certified spine surgeons rated single-turn answers from GPT-4, GPT-4o, and Google Gemini web interfaces to 10 author-curated spondylodiscitis frequently asked questions.

Key Findings
  • Overall, 38.6% of responses were rated excellent and 39% satisfactory with minimal clarification, while 16.7% needed moderate clarification and 5.7% were unsatisfactory.
  • The most common reason clarification was needed was insufficient information (41.1% of flagged responses), followed by language-related issues and overly detailed answers.
  • Complication questions scored highest (mean 3.4/5) and treatment and prognosis questions lowest (2.7 and 2.9/5), and median overall ratings did not differ significantly among the three LLMs.
Caveat

Each prompt was submitted only once to consumer web interfaces at a single time point using 10 questions, so the findings are not reproducible and do not capture model updates or clinical (versus surface) accuracy.

Translational & Hallmark Medicine

5 papers this week

Effects of Intramuscular Human Fat Grafting on Muscle Structure and Function Using Nude Mice.

In a nude-mouse model, intramuscular human fat grafts were largely resorbed and replaced by fibrosis by six months with no functional muscle improvement, suggesting a structural rather than regenerative role.
Overview

A controlled animal study of 59 athymic mice allocated to intramuscular injection of low-density fat, high-density fat, or saline into hind-limb muscles. Grip strength was measured weekly for six months, with endpoint ex vivo mechanical testing, histology, and human-specific immunofluorescence.

Key Findings
  • There was no significant between-group difference in muscle strength; saline limbs generally showed higher final grip strength (78 gf) than high-density (61 gf) and low-density fat (50 gf) groups.
  • By six months most adipocytes were resorbed and replaced by collagen-rich matrix, with fibrosis greater in high-density grafts (25.49%) than saline (19.42%) or low-density fat (19.61%).
  • Only limited new muscle formation was observed, and it was predominantly of mouse (host) origin rather than derived from the human graft.
Caveat

This xenograft model in immunodeficient mice with small hind-limb muscles may not reflect fat-graft behavior in human muscle, and the grip-strength differences, though numerically favoring saline, were not statistically significant.

"Protective effect of KUS121, a valosin-containing protein (VCP) modulator, against ischemia/reperfusion injury in axial pattern flaps".

In a rat flap model, the VCP modulator KUS121 raises survival of ischemia/reperfusion-injured axial flaps, with dosing given after reperfusion lifting survival from about 49% to 96%.
Overview

In a controlled animal study in Sprague-Dawley rats, 3 × 6 cm axial-pattern epigastric flaps underwent 8 hours of ischemia followed by reperfusion. KUS121 given 1 hour before elevation or immediately after reperfusion (then daily to day 6) was compared with untreated controls for flap survival, apoptosis, and endoplasmic reticulum stress.

Key Findings
  • Posttreatment produced the highest day-7 flap survival at 96.2%, versus 80.7% with pretreatment and 48.8% in untreated controls (p<0.001 and p=0.002).
  • In pretreated flaps, apoptotic TUNEL-positive cells fell to roughly a third of control levels (distal 2.3 vs 7.7; middle 2.3 vs 9.0 cells/field; p<0.001).
  • The endoplasmic reticulum stress marker CHOP was markedly reduced in pretreated flaps (distal 9.0 vs 21.4; middle 6.8 vs 23.5 cells/field; p<0.001).
Caveat

This is a small-group rodent flap model with follow-up to only day 7, so effects on human flap survival and long-term durability are unknown.

Adipose-derived stem cell peptide 5 alleviates hypertrophic scarring through targeting pyruvate carboxylase or p50 to coordinate PI3K/AKT/mTOR-autophagy and NF-κB/IL-6 signaling.

A novel adipose-stem-cell-derived peptide, ADSCP5, reduces collagen production and scar formation in cell and animal models, suggesting a possible future antifibrotic therapy for hypertrophic scars.
Overview

This preclinical mechanistic study across in vitro assays plus rabbit and porcine scar models tested whether ADSCP5, a peptide from adipose-derived stem cell-conditioned medium, suppresses hypertrophic scar fibroblast activity, and mapped its molecular targets using pull-down, docking, and binding assays.

Key Findings
  • In scar fibroblasts, ADSCP5 reduced collagen (COL1A1, COL1A2, COL3A1) and α-SMA expression without changing cell proliferation, apoptosis, or migration.
  • Mechanistically, ADSCP5 bound directly to pyruvate carboxylase or the NF-κB subunit p50, suppressing PI3K/AKT/mTOR signaling and lowering IL-6 transcription.
  • In rabbit and porcine models, ADSCP5 attenuated collagen deposition and scar hyperplasia, reduced angiogenesis (lower VEGFA/CD34), and promoted autophagy (lower p62).
Caveat

All findings come from cell cultures and animal scar models with no human data, so efficacy and safety in patients remain untested.

Adipose-derived mesenchymal stromal cells and their acellular derivatives in cutaneous wound healing and pathological scarring: a narrative review.

This narrative review concludes that adipose-derived stromal cells and their acellular products show preclinical promise for wound healing and scar modulation but are not yet ready for routine clinical use.
Overview

This narrative review synthesizes evidence on adipose-derived mesenchymal stromal cells and their acellular derivatives, including conditioned medium, soluble factors, extracellular vesicles, and apoptotic vesicles, in cutaneous wound healing and pathological scarring.

Key Findings
  • Conventional scar-management options (steroids, excision, radiotherapy, laser, cryotherapy, silicone, pressure therapy) are described as limited by variable efficacy, recurrence, and adverse effects.
  • ASC-based products are proposed to act on scar-relevant pathways, notably TGF-β/Smad signaling, myofibroblast activity, and MMP/TIMP balance, alongside macrophage polarization and angiogenesis.
  • The evidence is characterized as predominantly preclinical and methodologically heterogeneous, with barriers including donor variability, product heterogeneity, and absent manufacturing standardization.
Caveat

As a non-systematic review of largely preclinical, heterogeneous studies, it provides no pooled effect estimates and is subject to selection bias in the cited literature.

From Clinical Practice to Basic Science, in Search for the Ideal Implantable Bioreactor: A Review on MFAT (Micro-Fragmented Adipose Tissue-Lipogems®) Biology and Its Clinical Applications.

This review positions micro-fragmented adipose tissue (Lipogems) as a structurally intact tissue bioreactor whose clinical results preceded and drove the study of its biological mechanisms.
Overview

This narrative review examines micro-fragmented adipose tissue (MFAT) produced by Lipogems processing, comparing it with stromal vascular fraction and nanofat and summarizing its biology and clinical applications across specialties.

Key Findings
  • Non-enzymatic Lipogems processing is described as preserving the native stromal vascular niche, including extracellular matrix architecture and the pericyte-endothelial complex, unlike enzymatic digestion or nanofat emulsification.
  • The authors frame MFAT development as reverse translation, in which consistent clinical efficacy preceded and guided mechanistic investigation.
  • Consolidated clinical use spans multiple medical and surgical specialties, with emerging translational applications proposed in oncology and sepsis.
Caveat

As a non-systematic narrative review summarizing largely uncontrolled clinical experience, it cannot establish comparative efficacy of MFAT over SVF, nanofat, or standard care.

Cases

4 papers this week

Long-term Outcomes of Neonatal Hand Sarcoma Reconstruction With Integra and Full-thickness Skin Grafting.

Ha J et al.·Plast Reconstr Surg Glob Open Sarcoma & Oncology

This is a single case report with more than 10 years of follow-up of a neonatal congenital fibrosarcoma of the volar hand reconstructed with Integra dermal regeneration template followed by skin grafting after neoadjuvant chemotherapy and wide excision.

Three-dimensional Magnetic Resonance Imaging Segmentation for Preoperative Planning in Gluteal Polymer Complications.

Bussed VM et al.·Plast Reconstr Surg Glob Open Aesthetic

This single case report describes a 42-year-old woman with recurrent inflammatory and infectious reactions after 2016 gluteal polymer injections, using volumetric postcontrast MRI and 3D Slicer segmentation to characterize and quantify the deposits.

Impact of High-Intensity Facial Electrical Stimulation Technology on Elevation of the Midface: A Prospective Study With Ultrasound.

Liew S et al.·Aesthet Surg J Open Forum Aesthetic

This prospective single-arm cohort of 8 participants delivered 4 weekly HIFES plus synchronous radiofrequency treatments, with ultrasound measuring modiolus position relative to the superior tragal point and lateral canthal point before treatment and 3 months after the final session.

Surgical management of autoimmune-associated calcinosis: a dermatomyositis case and case-based review.

Yerolatsite M et al.·Rheumatol Int Reconstruction & Microsurgery

This case report paired with a PRISMA systematic review of 13 case reports and 3 case series evaluated surgical management of calcinosis in autoimmune connective tissue diseases, alongside a dermatomyositis patient treated with excision and flap reconstruction.

Closing Notes

The recurring verdict this week is equivalence. Head-to-head comparisons across very different designs keep converging on the same word, comparable: a multicentre randomized trial of robotic versus open nipple-sparing mastectomy, a retrospective cohort of immediate versus delayed autologous reconstruction under radiotherapy, a meta-analysis of biologic versus synthetic mesh in irradiated pockets, and a cadaveric equivalence study matching the second metatarsal head to the capitate. Where a newer technology enters the comparison, as with robotic mastectomy and early robotic microsurgery, the measurable difference is operative time rather than margins or complications. The honest reading is that most of what looks like innovation is refinement of selection and indication. The dorsal preservation rhinoplasty series in Plast Reconstr Surg, with its revision rate rising and then falling as indications were widened and then disciplined, makes the point plainly, as does the run of breast papers showing that adding oral antibiotics, or extending prophylaxis past a day, adds nothing. Set against this, the phrenic-nerve work in J Reconstr Microsurg is a useful reminder that a dynamic, in-vivo measurement can double what static dissection reports, and there the difference does change the operation. Much of the rest remains single-centre and small.

Until next Sunday,

Marius DryschMarius Drysch, MD, MHBA