Saito S, Ryu J, Oikawa H, Honda T
Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan.
Bull Hosp Jt Dis. 1997;56(4):191-6.
Sixty-eight primary total hip arthroplasty in sixty-two patients (average age: 56.2 years) were followed for a minimum of five years (mean: 7.3 years). In all patients a Harris-Galante prosthesis was used. The initial diagnosis was osteoarthritis in 65 hips and avascular necrosis in 3 hips. Forty hips (58.8%) had high degree acetabular dysplasia that necessitated performing autogenous femoral head bone grafting. Preoperatively, the mean Harris hip score was 53.1 points. At last follow-up the mean hip score was 91.2 points. Twelve patients (17.6%) complained of thigh pain, which disappeared within two years in ten hips. Two patients complained of mild thigh pain of more than two years duration. There were no limitations of the activities of daily living. Radiolucency at the component-bone interface were graded 30.9% on the acetabular side, and 64.7% on femoral side. In all cases the radiolucencies were less than 2 mm in width. Two femoral components were graded as loose, but no acetabular component was graded as loose. The extrusion of the acetabular liner was seen in one hip, which is considered to be a fatigue breakage due to its design. The authors conclude that cementless total hip arthroplasty in Japan has presented excellent results.
对62例患者（平均年龄：56.2岁）进行的68例初次全髋关节置换术进行了至少5年（平均：7.3年）的随访。所有患者均使用Harris-Galante假体。初始诊断为65髋骨关节炎，3髋缺血性坏死。40髋（58.8%）有高度髋臼发育不良，需要进行自体股骨头骨移植。术前，Harris髋关节平均评分为53.1分。末次随访时，髋关节平均评分为91.2分。12例患者（17.6%）主诉大腿疼痛，其中10髋在两年内疼痛消失。2例患者主诉大腿轻度疼痛，持续时间超过两年。日常生活活动无受限。髋臼侧假体-骨界面的透亮线分级为30.9%，股骨侧为64.7%。所有病例中，透亮线宽度均小于2mm。2个股骨假体分级为松动，但无髋臼假体分级为松动。1髋可见髋臼衬垫挤出，考虑因其设计导致疲劳断裂。作者得出结论，日本的非骨水泥全髋关节置换术取得了优异的结果。
