Correction of mild to moderate ulnar drift. (1) Joint is entered through incision in radial side of hood. (2) Relaxing incision is made in ulnar side of hood to permit repositioning of extensor tendon. (3) and (4) Incision in radial side of hood is closed after its edges are overlapped. (5) Extensor indicis proprius tendon is transferred to first dorsal interosseous muscle to reinforce it. SEE TECHNIQUE 73.9.