The effect of the slip ratio in sagittal plane on the wear of UHMWPE bearings in TKR

摘要：

　　Reducing the sliding distance by decreasing slip ratio which occur during knee articulation helps to reduce the wear rate of the ultra-high molecular polyethylene (UHMWPE) bearings in total knee replacements (TKR).However,in the limited space in knee,a smaller sagittal radius of femoral articular surface which leads to greater contact pressure that may aggravate wear is needed to make a smaller slip ratio possible.This paper described a model for evaluating the effect of slip ratio in sagittal plane on the wear depth of UHMWPE bearings.The results showed that decreasing the sagittal radius of femoral articular surface properly was an effective approach to reduce the wear of UHMWPE bearings.

关键词： slip ratio radius of curvature wear TKR

作者: Hu Kun Yao Jin

作者单位: Institute of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065,China

会议类型: 国际会议

会议名称: 3rd International Conference on Frontiers of Manufacturing and Design Science(第三届制造与设计科学前沿国际会议(ICFMD))

会议地点: 香港

会议语种:英文

页码: 1695-1699

在线出版日期: 2012-12-11（万方平台首次上网日期，不代表论文的发表时间）