The triangular fibrocartilage complex (TFCC) is a soft tissue structure covering the distal ulna at the wrist, which serves to help stabilize the wrist and transmit load across the wrist joint. Because of its anatomic complexity and the forces that it experiences, the TFCC is at risk for both direct injury and degenerative damage. As such, TFCC pathology is a common cause of ulnar sided wrist pain.
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