Oct 26 – Nov 1, 2026 · 25 new studies, 10 reviews · Hand & Upper Extremity archive · All weeks
The new Hand & Upper Extremity research The Reduction sent the week of Oct 26 – Nov 1, 2026, with the week’s most recent reviews, each with a one-line summary.
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Review of distal radius malunion osteotomy's shift from 2D radiographic planning to 3D virtual planning and patient-specific guides; better geometric accuracy doesn't guarantee better function, so standardized outcome data are needed.
Systematic review of 11 mostly low-quality studies finds internal brace augmentation for scapholunate injuries gave no added benefit in comparative studies, with high rates of perianchor osteolysis and late structural failure; counsel patients accordingly.
In a large claims database, steroid injection within 3 months before endoscopic carpal tunnel release raised wound complication odds; waiting at least 3 months made complication rates equivalent to no prior injection.
In 189 patients with De Quervain's tenosynovitis, ultrasound-guided and landmark-guided corticosteroid injections showed no difference in treatment success or surgical conversion (about 24% in both), so ultrasound isn't clearly necessary.
In national claims for distal radius ORIF, modifier 22 (increased complexity) was used in only 17% of cases, tracked fracture complexity rather than patient complexity, and was linked to modestly higher payments.
Free consumer chatbots (ChatGPT, Gemini, Copilot) diagnosed minor and elective hand conditions well but only 65% of traumatic presentations, with 21.7% under-triage in trauma, so they should not guide triage decisions.
In a cadaveric Monteggia-like injury model, radial head resection significantly reduced forearm construct stiffness and radial head arthroplasty restored it to near intact levels, supporting reconstruction of the radial column in these injuries.
The Arabic Duruöz Hand Index, validated in 439 patients, showed excellent reliability, low measurement error, and strong correlation with the PRWHE-AR, making it a sound hand disability measure for Arabic-speaking patients.
Anatomic Considerations of Retrograde Intramedullary Nail Placement in Distal Ulna Fractures.
In a cadaveric study, retrograde intramedullary nailing of distal ulna fractures frequently penetrated the TFCC (mostly dorsal periphery, small area) and always disrupted the extensor retinaculum, with nearby tendons and dorsal ulnar nerve branch spared.
Clinical Outcomes of Pedicled Vascularized Bone Grafting for Scaphoid Nonunion.
In 30 patients with scaphoid nonunion, pedicled vascularized bone grafting (dorsal or volar) achieved union in all cases with significant pain and function gains and no revisions, with comparable results between techniques.
In a large propensity-matched national database study, carpal tunnel release was associated with about 2.5 times higher hazard of trigger finger over 5 years (9.2% vs 3.1%), highest in the first 6 months, supporting preoperative counseling.
Across 252 queries, 72.6% of LLM answers on carpal tunnel management matched AAOS guidelines, with ChatGPT best (92.1%) and Mistral worst (52.4%), so clinician oversight remains necessary.
Performance of Large Language Models in Image-Based Evaluation of Dupuytren Contracture.
ChatGPT, Gemini, and Claude performed poorly at characterizing Dupuytren contracture and recommending treatment from patient photos, with agreement with hand surgeons no better than chance.
Unmasking Neuroma Pain in the Upper Extremity Amputee.
In 86 upper extremity amputees, a previously silent neuroma became painful after surgery on a separate neuroma in 4.7%, and TMR or RPNI relieved pain in those treated, so patients should be counseled about this possibility.
In matched bariatric surgery patients, adding GLP-1RA therapy was associated with higher diagnoses of carpal tunnel (RR 1.63) and cubital tunnel syndrome (RR 2.10) but not higher release rates, suggesting greater nerve compression susceptibility.
This technical note describes an extended harvest of the medial cutaneous nerve of the forearm to gain more graft length for brachial plexus reconstruction, especially obstetric injuries, with low donor morbidity.
Poland Syndrome with transverse upper limb deficiency: beyond the vascular disruption hypothesis.
This case report describes a neonate with Poland syndrome and carpal-level transverse upper limb deficiency, a rare phenotype that challenges the single-point vascular interruption hypothesis and supports a dynamic embryonic capillary plexus model.
Optimal location for bone grafting from the olecranon.
CT of 305 forearms found the densest cancellous bone 1 cm distal to the olecranon tip, making that the optimal site for harvesting proximal ulna bone graft.
In 145 ulnar shortening osteotomies, hardware irritation (26%) depended on distance from the ulnar styloid to the distal plate edge, not plate surface; keeping about 30 mm or more reduced irritation risk.
In a retrospective pilot of 48 wrists in children, distal radial epiphysiodesis achieved physeal closure in about 94% with no complications, suggesting a low-risk option for progressive wrist deformity.
In a large matched database cohort of type 2 diabetics, metformin use was associated with fewer nerve decompression surgeries and fewer revisions after carpal or cubital tunnel release, though prospective confirmation is needed.
For metacarpal shaft fractures treated with retrograde nailing, a percutaneous approach gave better motion, grip strength, and QuickDASH through 2 weeks and shorter surgery than open, with no extensor lag; differences faded by 4 weeks.
Trauma, surgery, and microtrauma as triggers for Dupuytren's disease: A systematic review.
Systematic review of 25 mostly low-certainty studies suggests acute trauma, elective hand surgery, and chronic microtrauma may trigger or accelerate Dupuytren's disease in predisposed individuals, though causation remains unclear.
In 80 patients after thumb CMC arthroplasty, GRIT scores didn't correlate with QuickDASH at individual time points, and the adjusted association (4.2 points lower) fell below the minimal clinically important difference.
After AI fracture-detection deployment in a pediatric ED, orthopaedic consults fell from 73% to 68.3% and stays shortened about 28 minutes for patients discharged without consultation, with no change in 30-day readmissions.
Nonarthroplasty Treatment Options for Management of Primary Elbow Osteoarthritis.
Primary elbow osteoarthritis is managed first with activity modification, NSAIDs, therapy, and injections; if these fail, arthroscopic or open d\u00e9bridement reliably improves pain, motion, and function with low complication rates.
Introductory article arguing that successful bionic reconstruction of the upper extremity, which links the body with prosthetic technology, depends on genuine, intentional multidisciplinary care.
Current Trends in 4-Corner and 3-Corner Fusions: Comparing Open and Arthroscopic Approaches.
Review comparing open and arthroscopic 3- and 4-corner fusion for SLAC and SNAC wrist arthritis, noting arthroscopic promise for motion and recovery but limited long-term comparative data, so technique should be individualized.
Good Enough: When to Avoid Perfection and Accept Adequate Surgery Results in Pediatric Hand Surgery.
This article argues that in pediatric hand surgery, accepting adequate reconstruction is often better than pursuing a perfect radiograph, since overly aggressive surgery risks lost reduction, poor healing, vascular compromise, growth plate failure, and contractures.
Natural Language Processing and Large Language Models.
Review of how natural language processing and large language models could improve hand surgery through clinical data extraction, patient education, decision support, and automated documentation, while noting challenges that still need resolution.
Reviews targeted muscle reinnervation and regenerative peripheral nerve interface techniques, covering indications, perioperative technique, and postoperative care for preventing and treating postamputation neuroma pain and improving prosthetic control.
Carpal Tunnel Syndrome: A Potential Early, Red-Flag Sign of Amyloidosis.
Carpal tunnel syndrome can be an early sign of systemic amyloidosis, especially in older patients with bilateral symptoms, and a proposed algorithm during carpal tunnel release can enable earlier diagnosis before cardiac disease develops.
Soft Tissue Reconstruction of the Upper Extremity After Ballistic Injury.
Overview of upper-extremity soft tissue reconstruction after ballistic injury: staged debridement and stabilization, then coverage ranging from local flaps for low-energy wounds to free flaps for high-energy ones.
Review traces contralateral C7 transfer from treating brachial plexus injuries to improving upper limb function after stroke or brain injury, reporting functional gains and mild, transient donor-site morbidity.
Outcomes of Small Joint Arthroplasty for the Rheumatoid Hand.
Discusses MCP and PIP joint arthroplasty for rheumatoid hands, noting careful patient selection is crucial and silicone implants remain the most reliable in survivorship, complications, and meeting patient goals.
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