Fracture-dislocation of the fourth and fifth carpometacarpal joints: AP view of the car pus reveals a small fragment between the base of the third and fourth metacarpal bones (arrow).
The lateral view reveals a dorsal fracture, which initially was overlooked (arrow).
Sagittal CT section demonstrates fracture-dislocation of the fifth carpometacarpal joint with a fracture of the dorsal lip of the hamate displaced in a proximal direction. m = fifth metaearpal, t = triquetrum, l = lunate, u = ulna, h = hamate
Pin fixation after open reduction of the injury.
