目前需更换关节的患者逐渐增多 ,更换的关节有膝关节、肘关节、踝关节等 ,但最多的是髋关节。欧洲 1995年的矫形外科植入市场为 10亿多欧元 ,2 0 0 1年已增加到 16亿欧元。对大多数病人来说 ,手术似乎有几分奇迹 ,但并非一劳永逸。距第一次更换髋关节的平均间隔时间约 10年 ;距 The current need for replacement of patients gradually increased, the replacement of the knee, elbow, ankle, etc., but the most is the hip. The European market for orthopedic implants was more than 1 billion euros in 1995 and 1.6 billion euros in 2001. For most patients, surgery seems a bit miraculous, but not once and for all. About 10 years from the first time to replace the hip joint interval;