[Course of treatment of a luxation of the 4th and 5th carpometacarpal joint with hamate involvement].

An uncommon case of a closed dorsal dislocation of the fourth and fifth metacarpal bases associated with a flake fracture of the hamate bone is described because of the rarity of this injury. In order to regain full function, an open reduction was necessary. Stability of the carpometacarpal joints was achieved by osteosynthesis using a Kirschner wire.