Combination tenodesis of flexor carpi ulnaris (FCU) and extensor carpi ulnaris (ECU). A and B, Tendons threaded through tunnel for start of tenodesis weave. (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.