Using a 50-station pin-on-disc (SuperCTPOD) machine, the influence of lubricant viscosity on the wear of vitamin E blended crosslinked polyethylene was investigated. Five different test lubricants were prepared by mixing different concentrations of carboxymethyl cellulose powder with deionised water. The viscosity range of the lubricants was 0.002–0.155 Pa, a range that represents the viscosities of diseased and healthy synovial fluids. Five groups of pins (10 pins in each group) were articulated against cobalt chromium discs. Wear was measured in terms of weight loss from each pin and disc for every group. Every 500,000 cycles the experiment was stopped to take gravimetric measurements along with roughness measurements of the articulating surfaces. The test discs did not show a significant change in weight after 2.5 million cycles of testing (p > 0.05). For the pins, the group tested with the lowest viscosity (0.002 Pa) produced the highest wear rate, namely 0.931 mg/million cycles, and the wear rates of the other groups were 0.074, 0.027, 0.034 and 0.021 mg/million cycles respectively. The wear rates calculated for the five groups were all lower than the wear rates recorded for ultrahigh molecular weight polyethylene and not significantly different to crosslinked polyethylene. In addition, apart from group 1 pins (tested with the lowest lubricant viscosity (0.002 Pa)), the machining marks on the other pins were still present after 2.5 million cycles of testing, indicating low wear.

使用一台50台针刺盘（SuperCTPOD）机器，研究了润滑剂粘度对维生素E共混交联聚乙烯的磨损的影响。通过将不同浓度的羧甲基纤维素粉末与去离子水混合来制备五种不同的测试润滑剂。润滑剂的粘度范围为0.002-0.155 Pa，该范围代表患病和健康的滑液的粘度。五组销钉（每组十个销钉）与钴铬圆盘铰接。磨损是根据每组每个销钉和制动盘的重量损失来衡量的。每500,000个循环停止一次实验，以进行重量分析以及铰接表面的粗糙度测量。测试盘在2点后的重量没有明显变化。5百万次测试周期（p> 0.05）。对于销，以最低粘度（0.002 Pa）进行测试的组产生最高的磨损率，即0.931 mg /百万次循环，而其他组的磨损率分别为0.074、0.027、0.034和0.021 mg /百万次循环。为这五组计算的磨损率均低于超高分子量聚乙烯的记录磨损率，与交联聚乙烯没有显着差异。此外，除了第1组销（用最低的润滑剂粘度（0.002 Pa）测试）外，在经过250万次测试循环后，其他销上的机加工痕迹仍然存在，表明磨损低。其他两组的磨损率分别为0.074、0.027、0.034和0.021 mg /百万次循环。为这五组计算的磨损率均低于超高分子量聚乙烯的记录磨损率，与交联聚乙烯没有显着差异。此外，除了第1组销（用最低的润滑剂粘度（0.002 Pa）测试）外，在经过250万次测试循环后，其他销上的机加工痕迹仍然存在，表明磨损低。其他两组的磨损率分别为0.074、0.027、0.034和0.021 mg /百万次循环。为这五组计算的磨损率均低于超高分子量聚乙烯的记录磨损率，与交联聚乙烯没有显着差异。此外，除了第1组销（用最低的润滑剂粘度（0.002 Pa）测试）外，在经过250万次测试循环后，其他销上的机加工痕迹仍然存在，表明磨损低。