Author(s): Dra Daniela Roque, Dr. Diogo Carvalho, Dr. Carlos João and Dr. Inês Monteiro

Abstract: Isolated metacarpophalangeal (MCP) dislocations are uncommon lesions, which usually result from a fall on outstretched hand with forceful hyperextension at the level of the MCP joints. MCP dislocations may be classified as either simple, if closed reduction is feasible, or complex, if surgical reduction is warranted due to interposition of peri-articular structures. Despite being a condyloid joint, the MCP is quite stable and, therefore, not easily prone to dislocation, due to its robust capsuloligamentous structures, including the volar plate, deep transverse metacarpal and collateral ligaments. A Kaplan lesion is even more rare subtype of MCP dislocation and is defined as an open complex dorsal dislocation of the MCP joint with volar exposure of the metacarpal head at the palm of the hand, with most cases occurring in the thumb and second digits. There are only few case reports regarding the treatment of this specific subtype of MCP dislocation. Up to 2014, only four cases of Kaplan's injuries of the ulnar triphalangeal fingers have been published. The authors present two successful case reports of double simultaneous Kaplan’s injuries of both ring and little finger, surgically treated. The surgical technique and rehabilitation program are described and documented.

DOI: 10.22271/27078345.2024.v6.i2b.221

Pages: 65-68 | Views: 244 | Downloads: 116

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