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Metacarpal Small Incision for Carpal Tunnel Syndrome
Published on: April 5, 2024
Dorsal dislocations of the second to fifth carpometacarpal joints: a case report
Kazuaki Mito1, Toshiyasu Nakamura, Kazuki Sato
1Department of Orthopaedic Surgery, School of Medicine, Keio University, Tokyo, Japan.
Abstract:
Dislocations involving the four ulnar carpometacarpal joints are rare. These complex dislocations are considered to be due to the application of a hyperflexion force on the metacarpal heads. In the present case, an indirect hyperextension force on the metacarpal bones created a lever-arm effect resulting in rupture of the firm ligament complex of the carpometacarpal joints, inducing complete dislocations of the second to fifth carpometacarpal joints.