高位脱臼股に発生した色素性絨毛結節性滑膜炎の1例

Pigmented Villonodular Synovitis Complicating Unreduced Congenital Dislocation of the Hip. Case Report

　今回われわれは，股関節に発生した色素性絨毛結節性滑膜炎（以下PVS）の1例を経験したので報告する．症例は51歳の女性で，近医で左股関節高位脱臼と診断され当科へ入院した．入院時，左股関節の違和感，脚長差およびTrendelenburg徴候を認めた．手術は1989年に報告された祖父江式に従い，二期的人工股関節置換術を行った．術中，ブドウの房状の増生した滑膜がみられ，病理所見でPVSと診断した．今回われわれは股関節に発生したPVSに対し，滑膜切除術と祖父江式人工股関節置換術を行い良好な結果を得ている．

　We report a rare case of pigmented villonodular synovitis (PVS) in a hip joint. The patient was a 51-year-old woman who was admitted to our hospital for a diagnosis of elevated hip dislocation. On admission she complained of incompability of the left hip joint, and leg length discrepancy and the Trendelenburg symptom were noted. The authors planned a staged operation by the Sofue's technique reported in 1989, and they performed it as scheduled. The authors detected a villous projection preoperatively, and postoperatively it was pathologically diagnosed as pigmented villonodular synovitis of the hip joint. Satisfactory results of massive resection of the synovia and Sofue's technique were observed at the most recent follow-up examination.