Case Reports
Synovial Osteochondromatosis of the Carpometacarpal Joint
Am J Orthop. 2007 October;36(10):E151-E152
Author and Disclosure Information
Hiroatsu Nakashima, MD, Hideshi Sugiura, MD, Yoshihiro Nishida, MD, Yoshihisa Yamada, MD, and Naoki Ishiguro, MD
Dr. Nakashima is Medical Staff; Dr. Sugiura is Assistant Professor; Dr. Nishida is Assistant Professor; Dr. Yamada is Medical Staff; and Dr. Ishiguro is Professor and Chair, Department of Orthopaedic Surgery, Nagoya University School of Medicine, Nagoya-City, Japan.
Abstract not available. Introduction provided instead.
Synovial osteochondromatosis is an uncommon lesion characterized by cartilagenous and osseous metaplasia of the synovial membrane of the joint and the tendon sheath. It is classically monoarticular, and is found in large joints such as the knees, hips, shoulders, and ankles; it rarely occurs in the small joints of the hand. We present an extremely rare case of synovial osteochondromatosis involving the carpometacarpal joint of the thumb.