Eighteen patients on the Stroke Service at Rancho Los Amigos Hospital were operated on for pronation-flexion deformities of the forearm and hand. Nine patients with severe spasticity, contracture, and poor sensation were operated on to improve appearance and hygiene, and to relieve pain. Nine patients with moderate spasticity, selective motor control of the extremity, and adequate sensation were operated on to improve function in their affected extremity. The results of flexororigin release and associated procedures in this series demonstrate that reasonable improvement can be expected in properly selected stroke patients.