Rotational Deformity of Long Finger Caused by Isolated Metacarpophalangeal Joint Capsular Injury: A Case Report.

Q4 Medicine

JBJS case connector Pub Date : 2026-09-10 eCollection Date: 2026-07-01 DOI:10.2106/JBJS.CC.26.00265

Mark Ren, Alirio J deMeireles, Taylor L Paskey, Nathan C Winek, Andrew Boone, Melvin P Rosenwasser

引用次数: 0

Abstract

Case: A 49-year-old woman presented after a leash-pulling injury with ring and small finger proximal phalanx fractures. Pain and supination of the long finger metacarpophalangeal (MCP) joint were noted without collateral ligament injury on examination or imaging. Surgical exploration noted isolated capsular avulsion, which was repaired with restoration of alignment and full range of motion with relief of pain and instability at 1-year follow-up.

Conclusion: This is a unique case of isolated finger MCP capsular injury causing rotatory instability. Surgeons should consider exploration and repair in cases of rotatory instability without other cause and failing nonoperative treatment.

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孤立性掌指关节囊损伤致长指旋转畸形1例。

病例：一名49岁女性，因牵带损伤导致无名指和小指近端指骨骨折。长指掌指关节（MCP）疼痛和旋后，检查或影像学检查均无副韧带损伤。手术探查发现孤立的关节囊撕脱，在1年的随访中，患者恢复了关节对齐和全活动范围，疼痛和不稳定得到缓解。结论：这是一例独特的孤立性手指MCP囊损伤引起旋转不稳定的病例。对于无其他原因且非手术治疗失败的旋转不稳定病例，外科医生应考虑探查和修复。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

JBJS case connector Medicine-Medicine (all)

CiteScore

0.60

自引率

0.00%

发文量

319

期刊介绍： JBJS Case Connector helps improve patient care by providing the medical community with a journal that harnesses technology to provide information tools for discovery and reporting of unusual musculoskeletal problems, findings, treatment, and outcomes. Co-edited by Thomas W. Bauer, MD, PhD, and Ronald W. Lindsey, MD, JBJS Case Connector assists orthopaedic surgeons in the search for precedents, connections, and trends in their efforts to improve patient care. Using this unique journal, surgeons can find the commonalities between cases, benefit from the experience of their peers, and filter case information by many important variables in order to provide the best possible care for orthopaedic patients. This cross-referenced online journal includes thousands of orthopaedic case reports. It compiles symptoms, conditions, and demographic details to empower surgeons to find cases similar to theirs. Surgeons can mine the database to reveal emerging trends and identify patterns, distinguishing between truly rare cases and repeated, related single instances of a larger problem. The JBJS Case Connector Image Quiz feature provides interactive quizzes based on images from content published by JBJS and includes a discussion area for further exploration of ideas and concepts. The JBJS Image Quiz app for iPad and iPhone is available in the App Store. Contributions to JBJS Case Connector are welcomed from anywhere in the world and are considered on their merits. Articles must be written in English and should be submitted as outlined in the Instructions to Authors. All authors must abide by the JBJS ethics policies and all submissions to JBJS Case Connector are covered by the JBJS embargo policy.