[Dislocations of the carpal bones].

Thirty per cent of the carpal dislocations are missed although a significant injury was sustained by the wrist. The extent of the ligamentous tears is relative to the magnitude of the forces applied and the anterior lunate dislocation corresponds to the more severe lesions. When a scaphoid fracture is associated, its treatment is predominant. Conservative treatment of a perilunate dislocation results very frequently in carpal instability and subsequently in wrist osteoarthritis after a variable period of time. Surgical treatment is now indicated in a great majority of cases, for reduction and fixation of a displaced scaphoid, or for ligament repairs.