Arthroscopic-Assisted Repair of Avulsed Triangular Fibrocartilage Complex to the Fovea of the Ulnar Head: A 2- to 4-Year Follow-up Study

A 1.5-mm Kirschner wire used as a guide pin is inserted from the ulnar neck to the foveal region under C-arm visualization. An original guiding device is used to confirm the anatomic position of the inserted wire. Then, a 2.9-mm cannulated drill is driven into a point just distal to the foveal surface to create an osseous tunnel from the ulnar neck to the foveal surface.

Under arthroscopic guidance, a No. 2-0 nonabsorbable suture passed into a 21-gauge needle is placed into the TFCC through the osseous tunnel. The suture end is caught by a No. 3-0 nonabsorbable suture loop and delivered out of the osseous tunnel. Near-normal tension of the TFCC is then confirmed by tightening both ends of the suture. To anchor the avulsed dc-TFCC to the ulnar fovea, the 2 free ends of the suture were tied onto the ulnar periosteum over the proximal entrance of the osseous tunnel.