[The upper arm plaster cast].

In order to treat the scaphoid bone fracture, the most frequent of all carpal fractures, a long immobilization is necessary. This can only be guaranteed by an upper arm plaster cast eliminating pronation and supination of the forearm. We use a modified plaster cast of Verdan, namely a hinge-type plaster cast applied to the upper arm, allowing flexion and extension but blocking pronation and supination. The indications are: - conservative treatment of scaphoid bone fractures - postoperative retention of scaphoid bone fractures operated upon - insecure osteosynthesis of the forearm shaft - postoperative elbow luxation We apply the Baycast bandage and hinge splints without stop made of V2A steel. Until now, four patients have been treated successfully with the hinge-type plaster cast.