Locked Metacarpophalangeal Joint: Case Series, Anatomical Study, and Literature Review
Abstract
Introduction: Metacarpophalangeal (MCP) joint locking is a rare condition characterized by the sudden inability to achieve full extension. Objectives: To present the results of our case series, describe the anatomical study conducted, and propose a treatment protocol for this condition. Materials and Methods: We report on nine patients treated between 2006 and 2023 who sought medical attention for loss of MCP joint extension after performing forceful manual tasks. Results: Eight patients underwent surgical treatment, while one achieved joint release through a reduction maneuver. All patients fully recovered their range of motion without complications or recurrences. Conclusions: MCP joint locking is an uncommon condition. As a treatment protocol, we recommend initially attempting closed reduction. If surgery is required, a palmar approach for the middle finger or a palmar-radial approach should be used, as these provide optimal exposure of the accessory collateral ligament for release and allow for the resection of the bony spur to prevent recurrence.Downloads
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