Open repair of class 1D injuries of triangular fibrocartilage complex (TFCC). A, Approach to TFCC, reflection of dorsal radioulnar ligament and periosteum over lunate fossa. B, Suture placement into TFCC through holes drilled in dorsoulnar aspect of distal radius; sutures are directed in palmar and ulnar direction to exit at edge of lunate fossa and sigmoid notch. Horizontal mattress sutures are placed in TFCC. (Redrawn from Cooney WP, Linscheid RL, Dobyns JH: Triangular fibrocartilage tears, J Hand Surg 19A:143, 1994. Copyright of the Mayo Clinic.) SEE TECHNIQUE 69.29.