Orthopaedic Department, Northwick Park Hospital, Harrow, London, UK.
Int Orthop. 2009 Dec;33(6):1537-42. doi: 10.1007/s00264-008-0679-8. Epub 2008 Nov 5.
This study examined the long-term results of a metal-on-metal total hip replacement with a Metasul-lined cup. Twenty-nine total hip arthroplasties were performed in 27 young patients (mean age 49 years). Twenty-two patients (23 hips) were available for clinical and radiographic analysis after a mean duration of 99 months. Mean preoperative Harris hip score of 60 improved to 93 at most recent follow-up. One patient required revision of his cup for periacetabular osteolysis. Radiographic analysis showed osteolysis in another four hips. The high rate of osteolysis found in this series has not previously been reported with this type of implant. The length of follow-up in this series is greater than other reports in the literature and may explain this difference.
本研究考察了金属对金属全髋关节置换术和 Metasul 衬垫杯的长期结果。27 例年轻患者(平均年龄 49 岁)进行了 29 例全髋关节置换术。22 例患者(23 髋)在平均 99 个月后接受了临床和影像学分析。术前平均 Harris 髋关节评分为 60,最近随访时提高到 93。1 例患者因髋臼周围骨溶解而需要翻修髋臼杯。影像学分析显示另外 4 髋存在骨溶解。在这个系列中发现的高骨溶解率以前没有在这种类型的植入物中报道过。本系列的随访时间长于文献中的其他报道,这可能解释了这一差异。