CARPOMETACARPAL DISLOCATION

Abstract

Cases of multiple dislocations at the carpometacarpal articulation are of sufficiently rare occurrence to warrant their being recorded for statistical reasons. A farmer, aged 40, was injured while pulling stumps. He was using a puller in which a 14 foot pole acted as a lever. The chain by which two heavy farm horses were hitched to the pole parted, releasing the pole, which struck the patient on the back of the right hand, right forearm, and right lower thorax. He was thrown violently to the ground, striking on the left hand with the arm outstretched. The injuries sustained consisted of fractures of several ribs on the right side, of the left clavicle, and of the right ulna laceration of muscles of the right forearm, laceration and contusion of the right hand, and the dislocation to be described, occurring in the right hand. On account of the marked swelling of the