Little Bryan S, Wixson Richard L, Stulberg S David
Indiana University Medical Center, Indianapolis, USA.
J Arthroplasty. 2006 Apr;21(3):338-43. doi: 10.1016/j.arth.2005.04.040.
The authors had previously reported good results with apparent fixation of a series of porous-coated anatomic hips at 2 to 4 years. In a larger series of 133 hips with porous-coated anatomic uncemented components, 91 hips in 82 patients were available for a follow-up of 11 years or greater. Although 3.1% of acetabular cups had migrated or had been revised at 2 to 4 years; at 11 to 18 years, there was 37% lysis, 21.7% migration, and 32.3% revision. For the femur at 2 to 4 years, there was 3.1% migration and 1.5% revision. At 11 to 18 years, there was 27.2% lysis (proximal only), 6.6% migration, and 3.2% revision. Survival analysis for migration or revision for the femoral was 94%, and for the acetabular component, 63%, deteriorating markedly after 10 years.
作者此前曾报道,一系列多孔涂层解剖型髋关节在2至4年时表面固定效果良好。在一个包含133例采用多孔涂层解剖型非骨水泥假体的更大样本队列中,82例患者的91个髋关节接受了11年或更长时间的随访。虽然在2至4年时,3.1%的髋臼杯出现了移位或进行了翻修;但在11至18年时,出现骨溶解的比例为37%,移位比例为21.7%,翻修比例为32.3%。对于股骨,在2至4年时,移位比例为3.1%,翻修比例为1.5%。在11至18年时,出现骨溶解的比例为27.2%(仅近端),移位比例为6.6%,翻修比例为3.2%。股骨移位或翻修的生存分析结果为94%,髋臼假体的生存分析结果为63%,10年后显著恶化。