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Journal of Hand Surgery (European Volume)
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Articles

Dorsoradial Avulsion of the Triangular Fibrocartilage Complex with an Avulsion Fracture of the Sigmoid Notch of the Radius

Y. MORISAWA
T. NAKAMURA
K. TAZAKI

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

Correspondence: Toshiyasu Nakamura, MD, PhD, Department of Orthopaedic Surgery, School of Medicine, Keio University, 35 Shinanomachi, Shinjukuku, Tokyo 160 8582, Japan. Tel.: +81 3 3353 1211; fax: +81 3 3353 6597. E-mail:tosiyasu{at}sc.itc.keio.ac.jp

We report two extremely rare cases of dorsal radial avulsion injury of the triangular fibrocartilage complex accompanied by an avulsion fracture of the sigmoid notch of the radius. Anatomical reduction of the bone fragment in conjunction with reattachment of the dorsal portion of the radioulnar ligament to the radial sigmoid notch were necessary to restore stability of the distal radioulnar joint and tension of the triangular fibrocartilage proper.

Key Words: radial avulsion • triangular fibrocartilage complex • avulsion fracture • sigmoid notch of the radius • DRUJ instability

Journal of Hand Surgery (European Volume), Vol. 32, No. 6, 705-708 (2007)
DOI: 10.1016/J.JHSE.2007.06.008
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