Combination tenodesis of flexor carpi ulnaris (FCU) and extensor carpi ulnaris (ECU). Passage of ECU through holes drilled in medullary canal of ulna. (Redrawn from Breen TF, Jupiter JB: Extensor carpi ulnaris and flexor carpi ulnaris tenodesis of the unstable distal ulna, J Hand Surg 14A:612, 1989.) SEE TECHNIQUE 69.39.