Abstract
Synovial chondromatosis is a rare benign clinical condition, with a rare location in the wrist. This study presents a case of synovial chondromatosis in the distal radioulnar joint (DRUJ) treated successfully with surgical excision. A 45-year old right handed male presented in our department, with a 3-year history of wrist pain, without any trauma. He referred a lump around the right DRUJ which fluctuated in size associated with frequent pain, weakness and a popping with occasional locking of the wrist. Clinical examination showed a painful lobulated swelling over right DRUJ with a crepitus at the lateral stress of the joint. X-rays and MRI showed multiple coarse calcific densities around the DRUJ. The patient was treated with surgical removal of calcified loose bodies originated by the DRUJ. Biopsy results were consistent with synovial chondromatosis. One year postoperatively, patient was pain-free, with a full range of motion and no signs of local recurrence.
Highlights
Synovial chondromatosis is a rare benign clinical condition, characterized by synovial connective tissue metaplasia and the formation of multiple loose cartilaginous nodules within the synovial membrane [1,2]
We report a rare case of synovial chondromatosis in the distal radioulnar joint (DRUJ) and a review of the literature
Von Schroeder HP et al reported a case of a 16-year old man with synovial osteochondromatosis of right DRUJ, treated with removal of 13 loose bodies and synovectomy [12]
Summary
Synovial chondromatosis is a rare benign clinical condition, characterized by synovial connective tissue metaplasia and the formation of multiple loose cartilaginous nodules within the synovial membrane [1,2]. A 45-year old right handed injection moulders presented in our department, with a 3-year history of wrist pain, without any trauma. Stressing DRUJ stability from volar to dorsal was exquisitely tender, producing a click and stressing the extensor carpi ulnaris (ECU) tendon was uncomfortable without any signs of subluxation. He has had an injection study previously. Anteroposterior and lateral wrist radiographs showed multiple coarse calcific densities in the right DRUJ (Figures 1A-1B). At 12 months final follow-up, no local recurrence was observed
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