Institute of Medical and Biological Engineering, School of Mechanical Engineering, University of Leeds, Leeds, UK.
J Biomed Mater Res B Appl Biomater. 2012 Aug;100(6):1459-65. doi: 10.1002/jbm.b.32664. Epub 2012 Mar 27.
Total hip replacement has been a successful surgical intervention for over 50 years, with the majority of bearings using a polyethylene cup. Long-term failure due to osteolysis and loosening has been widely documented and alternative bearings have been sought. A novel carbon fiber-reinforced poly-ether ether ketone (CFR-PEEK) cup was investigated through experimental friction and wear studies. Friction studies demonstrated the bearings operated in a boundary lubrication condition, with friction factors higher than those for other hip replacement bearings. The wear study was conducted with 36 mm diameter bearings tested against Biolox Delta heads for a period of 10 million cycles. The mean volumetric wear rate was 0.3 mm(3)/Mc, indicating the ceramic-on-CFR-PEEK bearing to be a very low wearing option for total hip replacement.
全髋关节置换术已经成功应用于临床 50 多年，其中大多数采用聚乙烯衬垫。由于骨溶解和松动导致的长期失败已被广泛记录在案，因此人们一直在寻找替代衬垫。通过实验摩擦磨损研究，对一种新型碳纤维增强聚醚醚酮（CFR-PEEK）衬垫进行了研究。摩擦研究表明，这些轴承在边界润滑条件下运行，其摩擦系数高于其他髋关节置换轴承。磨损研究使用直径为 36 毫米的轴承在 Biolox Delta 头下进行了 1000 万次循环测试。平均体积磨损率为 0.3mm(3)/Mc，表明陶瓷对 CFR-PEEK 轴承是一种用于全髋关节置换的低磨损选择。
