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Carpal tunnel syndrome caused by volar dislocation of the lunate in a patient with rheumatoid arthritis.

Oka Y, Tokunaga D, Fujiwara H, Hojo T, Takatori R, Kubo T

Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan. y-oka@koto.kpu-m.ac.jp

We report a case of carpal tunnel syndrome caused by volar dislocation of the lunate in a patient with rheumatoid arthritis. A 74-year-old woman complained of numbness in her fingers. Carpal tunnel syndrome was diagnosed, and carpal tunnel release was performed. However, the symptoms recurred. Three-dimensional computed tomography and magnetic resonance imaging revealed volar dislocation of the lunate and synovitis around the distal radioulnar joint, respectively. Resection of the lunate and the Sauvé-Kapandji procedure were effective.

Published 13 December 2006 in Mod Rheumatol, 16(6): 404-9.
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