Sharp R J, O'Leary S T, Falworth M, Cole A, Jones J, Marshall R W
The Royal Berkshire Hospital, Reading, United Kingdom.
J Arthroplasty. 2000 Aug;15(5):627-34. doi: 10.1054/arth.2000.4350.
Young patients at 2 separate centers received a C-Fit uncemented arthroplasty, with randomization to porous or hydroxyapatite coating. No difference in survival could be found between components that were porous or hydroxyapatite coated, with 27.5% being revised within 8 years, mainly for aseptic loosening. Acetabular augmentation screws or offset acetabular liners similarly did not affect outcome. Two of the offset liners had spun within the metal acetabular liners, with early failure. Some of the survivors showed poor clinical scores, but there was no correlation between clinical score and radiographic evidence of loosening. These results are comparable to the poorest reported survival figures in the literature for uncemented prostheses. Prosthesis coating could not be shown to affect component survival for this prosthesis.
来自两个不同中心的年轻患者接受了C-Fit非骨水泥型关节置换术，随机分为多孔涂层或羟基磷灰石涂层。多孔涂层或羟基磷灰石涂层的假体在生存率上没有差异，8年内有27.5%的患者进行了翻修，主要原因是无菌性松动。髋臼增强螺钉或偏心髋臼衬垫同样不影响手术结果。有两个偏心衬垫在金属髋臼衬垫内发生了旋转，导致早期失败。一些存活患者的临床评分较差，但临床评分与假体松动的影像学证据之间没有相关性。这些结果与文献中报道的非骨水泥假体最差生存率相当。对于这种假体，未能证明假体涂层会影响假体生存率。
