Author | John T. Capo, MD


Perilunate dislocation: Case studies of a frequently missed diagnosis

July 28, 2008

ABSTRACT: If enough force is applied in a wrist ligament injury, aperilunate dislocation may occur. Physicians can readily make thediagnosis, but the injury may be missed in the initial evaluation. Withprompt recognition and intervention, the incidence of permanentdisability may be lessened. Acute carpal tunnel syndrome may accompanyperilunate injuries and frank dislocations. The scapholunateand lunotriquetral ligaments confer significant structural stabilityand help maintain the anatomical relationships of the carpal bones;when they are compromised, structural integrity is lost.Visual inspectionis critical to the physical examination. Neurovascular statusshould be determined and documented. Radiographic evaluationis recommended for all hand injuries. All perilunate dislocationsfirst need to be closed reduced, followed by surgical treatment.(J Musculoskel Med. 2008;25:390-395)