Fractures of the radial head and related instability and contracture of the forearm.

Displaced fractures of the radial head that require reduction or excision are often associated with longitudinal instability. Where possible (type II), these fractures should be stabilized with rigid internal fixation In cases in which the initial displacement reflects complete dissociation, supplemental stabilization and repair may be required. Particular attention must be paid to the posterolateral collateral ligament, the interosseous ligament of the forearm, and ligaments at the distal radioulnar joint.