Complex carpal dissociation with open, complete, and divergent trapezium, capitate, and hamate dislocation: a case report.

Chim, Harvey; Yam, Andrew K T; Chin, Andrew Y H; Teoh, Lam Chuan · J Hand Surg Am · 2007

case_report · Level V

Where this comes from

Abstract

We report a patient with a unique complex carpal dissociation involving complete and divergent dislocation of the hamate, capitate, and trapezium with total ligamentous disruption of the distal carpal row and midcarpal joint, associated with a transverse shaft fracture of the fifth metacarpal. The mechanism of injury was a sustained torsional force resulting in a simultaneous distraction and bidirectional dorsopalmar (ulnar)-palmodorsal (radial) crushing force at the carpus.

Medical subject headings

Anatomy