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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.
If a congruent reduction cannot be achieved or if the dorsal instability is unstable in 30Â° of supination, then arthroscopic evaluation of the triangular fibrocartilage complex (TFCC) is recommended with repair as needed. Repairing TFCC tears is contraindicated in the presence of infection or degeneration. Palmer class 2 degenerative TFCC tears (see Overview, Pathophysiology) represent a pathologic progression of disease associated with ulnar impaction syndrome.