Scaphotrapezio-trapezoidal dislocation. A case report.

A complex hand injury with scaphotrapezial dislocation and dislocation of the trapezoid, third, fourth, and fifth carpometacarpal joints occurred when a motorcyclist was involved in a road accident. The extent of the injury was initially overlooked. Combined injuries of the carpus and carpometacarpal joints can easily be missed at radiographic examination. The true lateral radiograph of the wrist is necessary in the diagnosis of complex wrist injuries.