[Fracture-dislocation of the second carpometacarpal joint. Case report and review of the literature].

A 26-year-old man was involved in a car crash then he presented an isolated trauma of the hand. We found out a dorsal dislocation of the second carpometacarpal joint with trapezoid fracture and a Rolando fracture. In emergency, closed reduction with percutaneous wires to stabilize, was performed. In the same time, the Rolando fracture was treated by internal fixation (plate). In a second time, after computerized tomography of the carpus, the trapezoid was reduced through a dorsal incision and held with two Kirschner-wires. At last follow-up one year after injury, the result was good. All movements of the wrist and fingers were full and pain free. Thumb index pinch and grasp were approximately 80% those of the uninjured hand. The mechanisms of injury, anatomic factors and management of seventy-one cases of similar trauma (included at least a dislocation of the second carpometacarpal joint) were reviewed in the literature.