Stabilizing Effect of Ulnar Shortening Procedure for DRUJ Instability

Abstract

Ulnar shortening is widely indicated for ulnocarpal abutment syndrome with positive-variance wrist. It also stabilizes the distal radioulnar joint (DRUJ) because of tightening effect on the triangular fibrocartilage complex (TFCC), as long as either the dorsal or palmar portion of the radioulnar ligament (RUL) is attached to the ulnar fovea. In clinical practice, it is very important to check the condition of the RUL through DRUJ arthroscopy, when the ulnar shortening was indicated for DRUJ instability cases. We retrospectively analyzed our case series.