Joint Replacement Center of Korea, Ewha Womans University School of Medicine, Seoul, Korea.
Int Orthop. 2010 Dec;34(8):1123-7. doi: 10.1007/s00264-009-0878-y. Epub 2009 Sep 26.
Despite improvements in the quality of alumina ceramics, osteolysis has been reported anecdotally after total hip arthroplasty (THA) with use of a contemporary alumina-on-alumina ceramic bearing. The purpose of this study was to evaluate the clinical and radiographic outcomes of THA using alumina-on-alumina ceramic bearing and to determine osteolysis using radiographs and computed tomographic (CT) scans in young patients. Consecutive primary cementless THA using alumina-on-alumina ceramic bearing were performed in 64 patients (93 hips) who were younger than 45 years of age with femoral-head osteonecrosis. There were 55 men (84 hips) and nine women (nine hips). Average age was 38.2 (range 24-45) years. Average follow-up was 11.1 (range 10-13) years. Preoperative Harris Hip Score was 52.9 (range 22-58) points, which improved to 96 (range 85-100) points at the final follow-up examination. Two of 93 hips (2%) had clicking or squeaking sound. No hip had revision or aseptic loosening. Radiographs and CT scans demonstrated that no acetabular or femoral osteolysis was detected in any hip at the latest follow-up. Contemporary cementless acetabular and femoral components with alumina-on-alumina ceramic bearing couples function well with no osteolysis at a ten year minimum and average of 11.1-year follow-up in this series of young patients with femoral-head osteonecrosis.
尽管氧化铝陶瓷的质量有所提高，但在全髋关节置换术（THA）中使用当代氧化铝-氧化铝陶瓷轴承后，仍有报道称发生了骨质溶解。本研究旨在评估使用氧化铝-氧化铝陶瓷轴承的 THA 的临床和影像学结果，并通过 X 线和 CT 扫描确定年轻患者的骨质溶解情况。连续对 64 例（93 髋）年龄小于 45 岁的股骨头坏死患者进行了非骨水泥 THA，均使用氧化铝-氧化铝陶瓷轴承。其中 55 例为男性（84 髋），9 例为女性（9 髋）。平均年龄为 38.2 岁（范围 24-45 岁）。平均随访时间为 11.1 年（范围 10-13 年）。术前 Harris 髋关节评分为 52.9 分（范围 22-58 分），末次随访时提高至 96 分（范围 85-100 分）。93 髋中有 2 髋（2%）有咔哒声或嘎吱声。无髋需要翻修或无菌性松动。X 线和 CT 扫描显示，在最后一次随访时，没有髋臼或股骨骨质溶解的迹象。在本系列年轻股骨头坏死患者中，使用非骨水泥髋臼和股骨组件与氧化铝-氧化铝陶瓷轴承配对，至少 10 年，平均 11.1 年随访后，其功能良好，无骨质溶解。
