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A TFCC tear is an injury to the triangular fibrocartilage complex, found in the wrist, between the end of the ulna bone and the carpals. Its function is to stabilize the radioulnar joint.
Patients with a torn TFCC display ulnar variance (radial shortening) that is on average 4.6 mm (vs 2.5 mm for no tear) and dorsal angulation of 24Â° (vs 12Â° for no tear). Since 1777, when DeSault's original dissertation first described DRUJ injuries, much has been written about this joint and the TFCC.