Multiple volar carpometacarpal joint dislocation. Case report of traumatic volar dislocation of the medial four carpometacarpal joint in a child and review of the literature.

Traumatic dislocation of the medial four carpometacarpal joints in a child is an unusual injury. Descriptions of this injury in the literature have been reviewed and a case is presented to illustrate the pertinent anatomy, biomechanical aspects, and details of management. Specifically, the importance of collateral circulation to the hand and an effective technique of pin fixation are described.