A TFCC tear is a tear in the triangular fibrocartilage complex, a structure found in the little finger side of the wrist.
Within the forearm are 2 bones, the radius (thumb side) and the ulna (little finger side), and within the wrist there are 8 wrist bones (carpals). The TFCC sits between the ulna and 2 carpal bones, the triquetrum and lunate.
Within the forearm are 2 bones, the radius (thumb side) and the ulna (little finger side), and within the wrist there are 8 wrist bones (carpals). The TFCC sits between the ulna and 2 carpal bones, the triquetrum and lunate.
The triangular fibrocartilage complex is made up of, and connects with a number of structures within the wrist including:
- articular disc
- meniscus homologue,
- ulnar collateral ligament
- volar/palmer (palm side) & dorsal (back side) radioulnar ligaments,
- sheath of the extensor carpi ulnaris tendon.
- ulnolunate and ulnotriquetral ligaments
Fig 1. Palm sided view (palmer) and back of hand sided view of the triangular fibrocartilage complex (1).
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