Aug 24–30, 2026 · 24 new studies, 10 reviews · Hand & Upper Extremity archive · All weeks
The new Hand & Upper Extremity research The Reduction sent the week of Aug 24–30, 2026, with the week’s most recent reviews, each with a one-line summary.
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CUSUM analysis of a single surgeon's dual-mobility trapeziometacarpal arthroplasty series showed surgical efficiency plateaued after ~28 cases, but technique-related complications persisted, indicating efficiency does not equal technical mastery despite good 2-year outcomes.
Distal Radial Fracture as an Early Marker of Bone Fragility: A Population-Based Study in Japan.
In this large Japanese cohort, distal radial fractures were linked to higher subsequent hip fracture rates but not truly worse mortality, suggesting they signal a key opportunity to start osteoporosis treatment before more severe fractures occur.
In cadaveric proximal phalanx fractures, threaded intramedullary nails in "X" or "Y" configurations provided significantly greater construct stiffness than K-wires or "I"-configuration nails, with similar load to failure across groups.
In brachial plexus decompression for thoracic outlet syndrome, a bioresorbable hydrogel wrap was safe and trended toward lower rates of persistent pain and reoperation versus no wrap, though underpowered to show significance.
Reverse Total Wrist Arthroplasty: New Design and Biomechanical Advantages.
Cadaveric biomechanical testing shows a novel reverse total wrist arthroplasty design reduces required muscle forces and carpal joint loading compared to standard total wrist arthroplasty, suggesting improved implant durability potential.
In 249 children undergoing trigger thumb release, both sedation-assisted and audiovisual distraction-assisted local anesthesia were feasible, well-tolerated, and avoided general anesthesia with high caregiver satisfaction.
In healthy volunteers, second-digit flexor recruitment and neutral wrist position were essential for optimal grip-induced dynamic stabilization of the medial elbow, informing UCL injury prevention strategies.
In 46 patients, ulnar tunnel foveal TFCC repair reliably relieved pain and restored motion by 12 weeks, but full activity return took ~6 months with a nonlinear recovery and setbacks common in nearly half.
Inter- and Intraobserver Reliability of Wrist Arthroscopy for TFCC Tears: An International Study.
International reliability study found only fair-to-moderate inter/intraobserver agreement among hand surgeons using arthroscopy to diagnose and classify TFCC tears, with poor agreement on treatment decisions, questioning current classification systems.
In 21 patients with chronic TFCC injury and severe DRUJ instability, adding dorsal tendon graft reinforcement to transosseous foveal repair yielded significant pain relief, improved grip strength, and better wrist scores at 44.5-month follow-up.
In 48 upper-extremity amputations treated with TMR/RPNI, acute and delayed procedures had similar complication and reoperation rates, with acute timing showing lower pain scores but no significant difference after adjustment.
Acute Versus Delayed Targeted Muscle Reinnervation for Upper-Extremity Amputations-Why Wait?
In upper-extremity amputees, performing targeted muscle reinnervation acutely (within 30 days) led to significantly less pain and better mental health outcomes than delayed TMR, with no added complication risk.
Observer-Blinded Comparison of Virtual and Manual Finger ROM in AI-Based 3-Dimensional Hand Models.
AI-based 3D hand modeling with virtual goniometry reliably matches manual goniometry for MCP, PIP, and DIP flexion after hand injury, but is less consistent for thumb IP flexion and finger extension.
In 30 patients, Adams-Berger ligament reconstruction for chronic DRUJ instability restored stability, grip strength, and functional forearm rotation with good-to-excellent outcomes and no graft failures at 12 months.
Union outcomes and associated factors in adolescent scaphoid fractures.
In 77 adolescents with scaphoid fractures, union rates were high (82%) overall but lower with proximal pole location, displacement, delayed diagnosis, surgery, older age, and adverse scaphoid morphometry.
In 196 wrists evaluated for CTS, wrist-to-forearm ratio added no meaningful diagnostic value beyond median nerve cross-sectional area alone, which itself performed well against clinical diagnosis.
Cadaveric biomechanical testing shows suture button suspensionplasty reduces index metacarpal load-to-failure by 33% regardless of K-wire trajectory, explaining reported post-procedure fractures and informing technique/counseling.
An international survey of 208 hand surgeons found thumb CMC instability is inconsistently defined and managed, prompting a call to standardize terminology and treatment.
SLIC 2 ligamentoplasty for chronic scapholunate dissociation maintained clinical improvement at 5+ years despite progressive radiological loss of carpal correction in this small cohort.
Over 21 years of Medicare data, collagenase injection has increasingly displaced open surgery for Dupuytren contracture alongside rising public interest, even as inflation-adjusted physician reimbursement fell 42% across all treatments.
In 69 patients, stepwise inside-out arthroscopic wrist arthrolysis significantly improved flexion, extension, pain, grip strength, and PRWHE scores for post-traumatic stiffness after distal radius fractures, with no major complications.
In a randomized trial of fingertip amputation reconstruction, the eponychial folding flap outperformed the rectangle recession flap for apparent nail-plate exposure, scar quality, and aesthetic satisfaction.
Prospective study of 39 patients found all-arthroscopic curettage and nonvascularized bone grafting achieved 94.8% union in scaphoid nonunion with good function, though smokers had worse outcomes.
National registry data show digit and thumb replantation rates fell nearly 60% from 2010-2022, with replant success declining and lower rates linked to lower income and state-level center saturation.
Spontaneous Closed Extensor Tendon Ruptures in the Nonrheumatoid Hand and Wrist.
Reviews spontaneous closed extensor tendon ruptures in nonrheumatoid patients, emphasizing that awareness of underlying systemic and local risk factors is key to prompt diagnosis and treatment.
Hand Surgery in Patients with a History of Lymphedema: A Review of Current Concepts and Opinions.
This review finds emerging evidence that hand surgery, including tourniquet use, is generally safe in patients with or at risk of lymphedema, despite historical caution and lack of standardized guidelines.
Management of upper extremity burn injuries: A hand Surgery-Focused review.
This narrative review outlines a hand-surgery-focused approach to upper extremity burns, covering acute resuscitation/debridement, reconstructive options like grafts and flaps, and evidence-based prevention/treatment of complications such as contractures and compartment syndrome.
Double Crush Syndrome: A Review of the Literature.
This review highlights persistent uncertainty in double crush syndrome's incidence, pathophysiology, diagnosis, and treatment, urging a multidisciplinary diagnostic approach.
The balance between artificial and human intelligence in clinical practice.
This review outlines AI's growing role across hand surgery diagnosis, planning, and rehabilitation while emphasizing risks like bias and overreliance, urging AI to augment rather than replace clinical judgment.
Wrist Denervation: Total vs Partial.
This review compares partial (PIN, combined AIN/PIN) versus total wrist denervation for chronic wrist pain, outlining technique, diagnostic blocks, and evidence gaps guiding future study.
Is there evidence of metal-on-metal bearing failure in modern total wrist arthroplasty?
Critical review finds no evidence that metal-on-metal bearings themselves cause failure in modern total wrist arthroplasty, with metallosis instead traced to polyethylene wear or component impingement releasing less toxic titanium debris.
Scapholunate Injuries in the Context of Acute Scaphoid Fractures: A Systematic Literature Review.
Systematic review finds scapholunate ligament injuries frequently accompany acute scaphoid fractures (0–71% incidence), with arthroscopy most sensitive, though optimal detection and treatment remain unclear.
Magnetic Resonance Imaging Assessment of Radial Wrist Pain: A Practical Guide for Surgeons.
This review offers surgeons a practical, systematic approach to interpreting MRI findings relevant to diagnosing causes of radial-sided wrist pain.
Distal Interphalangeal Joint Fractures of the Hand.
This review outlines classification and management of distal interphalangeal joint fractures, emphasizing timely diagnosis and joint concentricity over perfect anatomic reduction for good outcomes.
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