Jacobs Journal of Clinical Case Reports

Simultaneously Dislocation of Ulnar Side All Four Carpometacarpal Joints – A Case Report

Published on: 2019-03-15


Simultaneous ulnar side four carpometacarpal joints dislocations of the fingers are very rare .These injuries mainly occur in young adults and represents less than 1% of all lesions of the hand. Simultaneous CMC dislocations may be dorsal or volar. Dorsal dislocations are more frequent. The reason why dorsal dislocations are commoner is that stronger static (dorsal ligaments) and dynamic (wrist extensors) restraints may cause the failure of bone dorsally, with the frequent rupture of the volar ligaments [1, 2]. The increased mobility on the ulnar side may predispose to the known greater frequency of the injury