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Which of the following structures is an anatomical component of the triangular fibrocartilage complex?
Extensor carpi ulnaris tendon sheath
Lunotriquetral interosseous ligament
Extensor digiti minimi tendon sheath
Flexor carpi ulnaris tendon sheath
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A 19-year-old football player suffers a fall onto a pronated, extended wrist. He has pain with resisted ulnar deviation and is tender to palpation just distal to the ulnar styloid. He has no tenderness over the extensor carpi ulnaris (ECU) tendon. Current radiographs are shown in in Figures A and B and and MRI of the wrist is shown in FIgure C. Which of the following is the most likely diagnosis?
ECU tendon rupture
Triangular fibrocartilaginous complex (TFCC) tear
Hook of hamate fracture
Scapholunate ligament injury
TFCC Tears and Repair- Jeffrey Yao, M.D.(COA 2017, 5.2)
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