Journal of Hand Surgery-Asian-Pacific Volume最新文献

{"title":"Anomalous Flexor Carpi Radialis Anatomy During Volar Distal Radius Approach: Two Case Reports.","authors":"Tal Kalimian, Kevin C Chung","doi":"10.1142/S2424835526720070","DOIUrl":"10.1142/S2424835526720070","url":null,"abstract":"<p><p>Volar locking plates become the standard treatment for distal radius fractures and are mostly applied through volar approaches that rely on the flexor carpi radialis (FCR) as a superficial landmark. Although usually straightforward, anomalous flexor musculature may complicate exposure, misdirect dissection and increase the risk of iatrogenic neurovascular injury. We report two rare anatomical variants encountered during open reduction and internal fixation: FCR brevis (FCRB) associated with anomalous insertion of the pronator quadratus, and complete agenesis of the FCR. Both substantially altered the expected surgical anatomy. The FCRB obscured the typical superficial interval and was associated with ulnar displacement of the pronator quadratus on deeper dissection. In the second case, the absence of the FCR eliminated a key landmark, with the palmaris longus becoming the most radial tendon, increasing the risk of inadvertent ulnar dissection towards the median nerve and its palmar cutaneous branch. Recognition of these variants is essential to ensure safe volar exposure and avoid neurovascular injury. <b>Level of Evidence:</b> Level V (Therapeutic).</p>","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"440-444"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148254493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acute Peri-scaphoid Calcific Deposition: Clinical and Radiological Features.","authors":"Ge Xiong, Wei Zheng, Liping Xu, Jiangchao Zhang, Deshui Yu, Yuan Zheng","doi":"10.1142/S2424835526500426","DOIUrl":"10.1142/S2424835526500426","url":null,"abstract":"<p><p><b>Background:</b> Acute peri-scaphoid calcific deposition (PSCD) is usually misdiagnosed as an avulsion fracture of the scaphoid. This study aims to describe the clinical presentation and radiographic features of PSCD. <b>Methods:</b> Twelve patients with PSCD were reviewed retrospectively. The data with regard to age, sex, side involved, history of trauma, duration of symptoms, time to presentation, symptoms and signs at presentation, pain score at presentation and final follow-up, radiological investigations, treatment and duration of follow-up were recorded. <b>Results:</b> All patients were female with an average age of 37.0 ± 10.1 years old. The right wrists were involved in six patients. The PSCD was found around three different locations, which were the dorsal edge, the tubercle and the radial side of the scaphoid. The average visual analogue scale at the first presentation and the last follow-up were 6.9 ± 1.1 and 0.7 ± 0.8, respectively. The patients were followed up for 5.4 ± 3.0 weeks. <b>Conclusions:</b> Acute PSCD predominantly affects young and middle-aged women and is most commonly located at the dorsal edge, tubercle and radial side of the scaphoid. Conservative treatment typically yields favourable outcomes. <b>Level of Evidence:</b> Diagnostic (Level V).</p>","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"415-421"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148254472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phosphaturic Mesenchymal Tumour of the Soft Tissue in the Finger Presenting without Tumour-Induced Osteomalacia: A Case Report.","authors":"Kosuke Ishikawa, Yuki Sasaki, Takuya Otsuka, Taku Maeda","doi":"10.1142/S2424835526720100","DOIUrl":"10.1142/S2424835526720100","url":null,"abstract":"<p><p>Phosphaturic mesenchymal tumour (PMT) is a rare neoplasm that can occur with or without tumour-induced osteomalacia (TIO). While PMTs commonly arise in the lower extremities or head and neck, digital involvement is rare. A 70-year-old man presented with a 12-year history of an enlarging subcutaneous mass on the dorsal aspect of his left ring finger. Imaging studies suggested an organised thrombus within a venous malformation. Marginal excision was performed, and histopathological examination revealed a lesion composed of capillaries and small vessels surrounded by spindle cells with small ovoid nuclei, showing immunopositivity for somatostatin receptor 2, CD56, ERG and focally fibroblast growth factor-23 (FGF23). These findings were consistent with a diagnosis of PMT, mixed connective tissue and non-phosphaturic variant. No recurrence has been observed at 4 years and 6 months postoperatively. This report emphasises the diagnostic difficulty of PMTs in atypical locations and the utility of immunohistochemical profiling in confirming the diagnosis. <b>Level of Evidence:</b> Level V (Therapeutic).</p>","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"455-459"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148254467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Finger Extensor Tendon Anatomy.","authors":"","doi":"10.1142/S2424835526970064","DOIUrl":"10.1142/S2424835526970064","url":null,"abstract":"","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"462"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148594380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Different Wrist Positions on Lumbrical Muscle Activity in the Hand: A Surface Electromyographic Investigation.","authors":"Naoya Goto, Hiroshi Kurumadani, Shota Date, Kazuya Kurauchi, Toru Sunagawa","doi":"10.1142/S2424835526500402","DOIUrl":"10.1142/S2424835526500402","url":null,"abstract":"<p><p><b>Background:</b> The lumbrical muscle is crucial for fine motor control by balancing the activity of the extrinsic flexor and extensor muscles. However, it remains unclear whether wrist position affects lumbrical muscle activity. This study aimed to investigate the effect of wrist joint position on lumbrical muscle activity using surface electromyography. <b>Methods:</b> The activities of the first lumbrical, first dorsal interosseous, flexor digitorum profundus and extensor digitorum muscles were measured in 19 right-handed healthy adults (mean age: 25.0 ± 3.4 years). Participants performed two tasks: (1) isometric metacarpophalangeal (MP) joint flexion at 30% maximal voluntary contraction and (2) isotonic proximal/distal interphalangeal (PIP/DIP) joint flexion-extension. These tasks were conducted in five wrist positions (60° flexion, 30° flexion, 0°, 30° extension and 60° extension). Muscle activities were compared amongst wrist positions for each task. <b>Results:</b> In the isometric MP joint flexion task requiring lumbrical muscle strength, wrist joint position partially influenced lumbrical muscle activity, with a significant difference observed only between the 0° and 30° extension. In the isotonic PIP/DIP flexion-extension task, which requires rapid fine finger movements, there was no difference in the lumbrical muscle activity between the wrist joint positions. <b>Conclusions:</b> In both isometric and isotonic motor tasks, the effect of the wrist position on lumbrical muscle activity was minimal, indicating a constant level of muscle activity. These results suggest that the lumbrical muscles maintain balance between the flexor and extensor muscles, enabling humans to grasp and manipulate objects, regardless of wrist joint position.</p>","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"399-406"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148254509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic Value of High-Resolution Ultrasound for Unilateral Digital Nerve Injuries in Small or Already Closed Wounds.","authors":"Yoshitaka Tanaka, Misato Maeyama, Hirohisa Yagi, Kotaro Okamoto, Kosuke Sasaki, Akio Kobayashi","doi":"10.1142/S2424835526500396","DOIUrl":"10.1142/S2424835526500396","url":null,"abstract":"<p><p><b>Background:</b> Diagnosing unilateral digital nerve injuries in small or already closed wounds is challenging, as clinical tests may be unreliable. Routine surgical exploration, although traditionally recommended, can represent an unnecessarily invasive procedure in cases without nerve rupture. High-resolution ultrasonography (US) offers a potential minimally invasive alternative. This study aimed to assess the reliability of US for evaluating unilateral digital nerve injuries in cases with small or previously sutured wounds. <b>Methods:</b> We retrospectively reviewed 19 digits from 19 patients with suspected unilateral digital nerve injury between April 2016 and December 2024. All underwent US evaluation within a mean of 8.9 days after injury. Injuries were classified as complete, partial or no tear based on long-axis US findings. Treatment decisions were guided by the US. Surgical findings were compared with preoperative US results. Clinical outcomes were assessed by pain resolution, numbness and sensory recovery. <b>Results:</b> US evaluation was feasible in all cases without local anaesthesia or complications. Nine patients had complete tears, six had partial tears and four had no tears. Twelve underwent surgery, and intraoperative findings matched US findings in all cases (100% accuracy). The remaining seven patients were managed conservatively. At follow-up (mean 6.6 months), all patients achieved improvement of numbness, hypaesthesia and local wound pain. Near-normal sensory recovery was achieved in 6/10 surgical patients and 4/6 conservative patients. No patients required additional treatment at the final follow-up. <b>Conclusions:</b> Early US evaluation is a reliable, safe and minimally invasive method for diagnosing unilateral digital nerve injuries in small or previously sutured wounds. This approach may prevent unnecessary surgical exploration in intact nerves and provide accurate guidance for treatment selection. <b>Level of Evidence:</b> Level III (Diagnostic).</p>","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"390-398"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148254499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploratory Study of Radiation Exposure between Image Intensifier-Equipped C-Arm and a Flat Panel Detector During Volar Plate Fixation of the Distal Radius.","authors":"Yuzo Honda, Eiji Kaida, Yoichi Miyazaki, Norihiko Sugita, Satoshi Mizukami, Kazuhiko Arima","doi":"10.1142/S2424835526500359","DOIUrl":"10.1142/S2424835526500359","url":null,"abstract":"<p><p><b>Background:</b> To compare the amount of radiation exposure received by the surgeon during volar locking plate fixation for distal radius fractures using an image intensifier (II) and a flat panel detector (FPD). <b>Methods:</b> We included 40 patients who underwent open reduction and internal fixation using a volar locking plate for isolated distal radius fractures. Surgeons wore thermoluminescent dosimeter badges at six anatomical sites: both thumbs, thyroid, at eye level (to estimate the eye lens dose), chest (under the protector) and abdomen (under the protector). The badges were replaced monthly, and equivalent radiation doses were measured. Fluoroscopy time was recorded from operative notes. Sixteen cases operated using an II-equipped C-arm between August and October 2020 were classified as Group II. Twenty-four patients treated between September and November 2024 using an FPD-equipped system comprised Group FPD. <b>Results:</b> Operative time was similar between groups (57 vs. 56 minutes). Fluoroscopy time was 324 seconds in Group II and 239 seconds in Group FPD and air kerma per case was comparable (6.6 vs. 5.8 mGy). Equivalent dose per second was higher with FPD for both thumbs (right: 2.23 vs. 1.70 μSv/s; left: 9.57 vs. 2.07 μSv/s), with no significant differences in eye-lens or thyroid exposure. <b>Conclusions:</b> The equivalent radiation dose per second of fluoroscopy was significantly higher in Group FPD for both thumbs compared to II systems. No significant differences were observed in radiation exposure to the lens or thyroid between groups. <b>Level of Evidence:</b> Level IV (Therapeutic).</p>","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"362-368"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148254496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synovial Chondromatosis of Hand and Wrist: A Case Series.","authors":"Darshan Kumar A Jain, Praveen Bharadwaj, Sandesh C Patil, Abhishek Sugumar","doi":"10.1142/S2424835526720112","DOIUrl":"10.1142/S2424835526720112","url":null,"abstract":"<p><p>Synovial chondromatosis commonly involves larger joints in the body, like the knee, elbow and hip. Upper extremity small joint involvement is rare and limited to case reports in the literature. Non-specific clinical and radiological features are a diagnostic challenge, often delaying accurate diagnosis. We present a series of five patients with intra- and extra-articular synovial chondromatosis of the hand and wrist treated by open as well as arthroscopic methods. The treating surgeon must consider it as a differential diagnosis for swellings around the hand and wrist. A review of literature and our experience from these cases suggests that excision/loose body removal in cases of synovial chondromatosis must be supplemented with a total/subtotal synovectomy to reduce the incidence of recurrence. <b>Level of Evidence:</b> Level V (Therapeutic).</p>","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"435-439"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148254481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surgical Management of Distal Radius Malunion: An Exploratory Network Meta-Analysis of Surgical Approaches.","authors":"Anatolia Nix, Shanil Hansjee, Pip Divall, Han Hong Chong, Kunal Kulkarni","doi":"10.1142/S2424835526500347","DOIUrl":"10.1142/S2424835526500347","url":null,"abstract":"<p><p><b>Background:</b> Symptomatic malunion following distal radius fracture can adversely impact wrist function. Corrective osteotomy, utilising volar, dorsal or dual approaches, is a common treatment option. This study aimed to review the literature and compare the outcomes of these different surgical approaches. <b>Methods:</b> A systematic review adhering to Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines was conducted, including studies comparing volar, dorsal or dual approaches in patients aged ≥16 years. Data on patient-reported outcome measures (PROMs), pain scores, grip strength, range of motion (ROM), radiographic alignment, graft use, union rates and complications were extracted and analysed via an exploratory network meta-analysis. <b>Results:</b> A total of 20 studies encompassing 517 wrists were included. All approaches demonstrated improvements in PROMs, functional outcomes and radiographic alignment. Analysis suggested comparable effectiveness of dorsal and volar approaches in improving ROM and pain. Dual approaches showed similar Disabilities of the Arm, Shoulder and Hand (DASH) scores to volar. No statistically significant differences were observed between approaches in improving radiographic alignment. Subgroup analysis revealed potential benefits of the dual approach over the volar for intra-articular malunions, particularly correction of radial inclination and ulnar variance. Conversely, the volar approach may be more effective than the dorsal in correcting ulnar variance in extra-articular malunions. Graft utilisation did not significantly impact union rates across any approach. Overall complication rates were low, but the dorsal approach exhibited a higher rate of hardware removal. <b>Conclusions:</b> This exploratory analysis found no definitive evidence to favour one surgical approach over another, though methodological limitations preclude firm comparative conclusions. Current evidence supports individualised approach selection based upon malunion configuration, patient factors and surgeon experience. Prospective comparative studies are needed to establish definitive comparative effectiveness. <b>Level of Evidence:</b> Level III (Therapeutic).</p>","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"349-361"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148431443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface Landmarks for Trigger Digit Release.","authors":"Hyun Il Lee","doi":"10.1142/S2424835526010046","DOIUrl":"10.1142/S2424835526010046","url":null,"abstract":"","PeriodicalId":51689,"journal":{"name":"Journal of Hand Surgery-Asian-Pacific Volume","volume":" ","pages":"460-461"},"PeriodicalIF":0.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148594356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}