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Journal of Hand Surgery (British and European Volume)
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Origins and Insertions of the Triangular Fibrocartilage Complex: A Histological Study

T. NAKAMURA
S. TAKAYAMA
Y. HORIUCHI
Y. YABE

From the Department of Orthopaedic Surgery, School of Medicine, Keio University, Tokyo, Japan

Correspondence: Dr Toshiyasu Nakamura, Department of Orthopaedic Surgery, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, JAPAN. E-mail: tosiyasu{at}med.keio.ac.jp

The origins and insertions of the triangular fibrocartilage complex (TFCC) were examined histologically in serially sectioned fresh-frozen cadaver wrists. The radioulnar ligament arose vertically through Sharpey’s fibres from a broad area in the ulnar fovea and more horizontally from a narrow area at the base of the ulnar styloid. The floor of the extensor carpi ulnaris sheath also originated firmly from the dorsal side of the fovea of the ulna, through an arrangement of Sharpey’s fibres. Loose ulnocarpally oriented fibres, corresponding to a thickened ulnar joint capsule, arose from the hyaline-like cartilage matrix at the tip of the ulnar styloid and inserted onto the triquetrum without Sharpey’s fibres. The ulnolunate and ulnotriquetral ligaments originated not from the ulna, but from the palmar side of the TFCC. The insertion of the TFCC into the sigmoid notch of the radius demonstrated a central transition from the fibrocartilaginous disc into hyaline cartilage and a firmer fibroosseous transition of the dorsal and palmar portions of the radioulnar ligament at the periphery.

Journal of Hand Surgery (British and European Volume), Vol. 26, No. 5, 446-454 (2001)
DOI: 10.1054/jhsb.2001.0562
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This article has been cited by other articles:


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J Bone Joint Surg Br, January 1, 2009; 91-B(1): 102 - 107.
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