Osteochondromatosis of the Hip Joint Two Cases Report.

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In this paper, we report two cases of osteochondromatosis of the hip joint which is regarded as a fairly rare condition. The first case was a 51-year-old womam, in whom osteochondromatosis had accompanied to bilateral osteochondromatosis of the hip in one side of her hip joints. Total hip replacement was performed for the painful hip of the contra-lateral side, however, no surgery was carried out for the involved side because of little subjective symptoms. The second case was a 13-year-old boy, in whom osteochondral free bodies were revealed to increase in size and number radiologically in the hip with the residual deformity of the femoral head due to the congenital dislocation of the hip he had had in his childhood. In the latter case, as mamy as 200 intra-articular free bodies were removed surgically, some of which being burned into the articular surface or having caused the partial articular defects of the hip joint, which implied the probable secondary osteoarthritis in future. Based on these findings it is suggested that the surgical removal of free bodies should be carried out in the early stage of this condition especially in young patients.
西日本整形・災害外科学会の論文