Flatt transfer of released ulnar intrinsics to radial side of digits for ulnar drift. (1) Incision is made on ulnar side of central tendon, releasing ulnar intrinsic insertion. (2) Ulnar intrinsic insertion is free. (3) Insertion is sutured to capsule on radial side of metacarpophalangeal joint of adjacent finger. (4) Segment of abductor digiti quinti tendon is excised to relieve ulnar pull of muscle on little finger. (5) First dorsal interosseous tendon is shortened to increase radial pull of muscle on index finger. SEE TECHNIQUE 73.9.