Louwerse R T, Heyligers I C
Department of Orthopaedics, Academic Hospital Vrije Universiteit (AZVU), Amsterdam, The Netherlands.
J Arthroplasty. 1999 Apr;14(3):391-6. doi: 10.1016/s0883-5403(99)90070-0.
We report on the failure of fixation of a polyethylene liner of a Harris/Galante first-generation cementless acetabular component (Zimmer, Warsaw, IN). The failure was diagnosed 9 years after implantation. The polyethylene liner was partly dissociated in its metal shell, resulting in nearly complete wearing through of the metal caused by the femoral head. This wearing contributed to severe metallosis and osteolysis around both the femoral and the acetabular component. The possible failure mechanisms are described, and a complete review of the literature is given.
我们报告了Harris/Galante第一代非骨水泥髋臼组件(Zimmer公司,印第安纳州华沙)聚乙烯内衬固定失败的病例。失败在植入9年后被诊断出来。聚乙烯内衬在其金属壳内部分离,导致股骨头几乎完全磨穿金属。这种磨损导致了股骨和髋臼组件周围严重的金属沉着病和骨质溶解。文中描述了可能的失败机制,并对相关文献进行了全面综述。