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Arthroscopy. 1994 Apr;10(2):166-70.

Generalized synovial chondromatosis of the knee: a comparison of removal of the loose bodies alone with arthroscopic synovectomy.

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Department of Orthopaedic Surgery, University of Toronto, Toronto Hospital, Ontario, Canada.


Thirteen patients with generalized synovial chondromatosis of the knee were treated by either removal of the loose bodies alone (n = 5) or arthroscopic synovectomy (n = 8). The average follow-up was 38 months (range 23-61). There were three recurrences in the loose body removal group, which were subsequently treated by arthroscopic synovectomy. Statistical analysis of the results shows a significant improvement in pain, synovitis and effusion, range of movement, and function after either treatment. The group treated by arthroscopic synovectomy had significantly lower recurrence rates (p = 0.02). We recommend arthroscopic synovectomy for patients with generalized synovial chondromatosis. However, if loose bodies alone are removed, a recurrence can be successfully treated by an arthroscopic synovectomy.

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