Garcia-Rey E, Garcia-Cimbrelo E
School of Medicine, Universidad Autónoma de Madrid, Orthopaedic Department, Hospital La Paz, Madrid, Spain.
Int Orthop. 2007 Apr;31(2):205-10. doi: 10.1007/s00264-006-0151-6. Epub 2006 May 31.
We assessed the clinical and radiographic results of 40 porous-coated acetabular cups with an Acetabular Cup System polyethylene liner over a minimum 14-year follow-up. Femoral head penetration was estimated using a software package. Fifteen cups were revised, 11 due to polyethylene liner rupture. All cups but two were radiographically stable, and 11 hips showed acetabular osteolysis. The overall femoral head penetration rate in hips without liner fracture with reference to the early penetration point was 0.1188+/-0.070 mm per year. Polyethylene liner fractures were associated with higher early femoral head penetration (P<0.0001) and a vertical cup position (P=0.0016). The 14-year survival without cup revision for any reason was 63.9%, 71.8% with no ACS polyethylene liner fracture and 65.3% with no acetabular osteolysis. Most cups showed a good clinical outcome in general, but major Acetabular Cup System liner failure and osteolysis were frequent. Patients with the ACS cups still in place should be monitored closely.
我们评估了40个采用髋臼杯系统聚乙烯内衬的多孔涂层髋臼杯的临床和影像学结果，随访时间至少为14年。使用软件包估计股骨头的穿透情况。15个髋臼杯进行了翻修，其中11个是由于聚乙烯内衬破裂。除两个髋臼杯外，所有髋臼杯在影像学上均稳定，11个髋关节出现髋臼骨溶解。参照早期穿透点，未发生内衬骨折的髋关节的总体股骨头穿透率为每年0.1188±0.070毫米。聚乙烯内衬骨折与较高的早期股骨头穿透率（P<0.0001）和髋臼杯垂直位置（P=0.0016）相关。因任何原因未进行髋臼杯翻修的14年生存率为63.9%，未发生髋臼杯系统聚乙烯内衬骨折的生存率为71.8%，未发生髋臼骨溶解的生存率为65.3%。总体而言，大多数髋臼杯显示出良好的临床结果，但髋臼杯系统内衬的主要故障和骨溶解较为常见。应密切监测仍保留髋臼杯系统的患者。
