急速破壊型股関節症の関節裂隙消失について
1986 年 5 巻 3 号 p. 313-319
詳細
1986 年 5 巻 3 号 p. 313-319
The pathomechanism of rapidly destructive coxarthrosis (RDC) is unclear and controversial. We treated surgically two patients who seemed to have RDC in the early stage. X-ray examination before surgery had revealed the disappearance of joint space within two months. One patient was a 65 year-old female and the other a 74 year-old female. Their synovia and femoral heads were examined grossly and microscopically.
We found that the joint cartilage was almost intact except the part of the weight-bearing area where the articular cartilage of the femoral head was lost and that the subchondral bone showed osteonecrosis. It would appear that the rapid loss of joint space in these two cases of RDC might result from avulsion of cartilage attached to subchondral necrotic bone.
