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Locking of the Distal Radioulnar Joint Due to a Triangular Fibrocartilage Complex Tear. Report of Two Cases Yoshihiko Tanin 1 , Hirotoshi Kurabayashi 1 , Hiroki Okai 1 , Katsuhito Takeuchi 1 , Naofumi Asan 1 , Yutaka Yabe 1 , Toshiyasu Nakamura 2 1Department of Orthopaedic Surgery, Tachikawa Kyousai Hospital 2Department of Orthopaedic Surgery, School of Medicine, Keio University Keyword: ロッキング , locking , 三角線維軟骨複合体 , triangular fibrocartilage complex , TFCC , 遠位橈尺関節 , distal radioulnar joint , DRUJ pp.315-320
Published Date 2009/3/25
DOI https://doi.org/10.11477/mf.1408101482
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 We report two cases of locked distal radioulnar joint due to a triangular fibrocartilage (TFCC) tear. Both patients were found to have loss of the supination range but normal pronation, like a locking of fingers. An ulnar styloid fracture was diagnosed. Arthrograms demonstrated overlapping of the TFCC and ulnar head, and MRI showed joint effusion and a TFCC tear. Arthroscopy revealed increased tension of the TFCC proper and tightness of the TFCC. Open release of the DRUJ locking was successful without any further foveal detachment tear.


Copyright © 2009, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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