He Yujue, Yu Zhongjia, Chen Ming, Wang Chengtao
College of Mechanical Engineering, Shanghai Jiaotong University, Shanghai, China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2005 Aug;22(4):840-3.
Resorption and osteolysis of periimplant bones resulting from the wear debris of artificial joint will cause long-term loosening. A new type of rolling knee artificial joint without UHMWPE based on the mechanics of rolling friction is designed for alleviating this problem. Because of low friction force, the resistance of extension and flexion is reduced strikingly and the stress on the interface between prosthesis and bone is reduced evidently. In addition, the bio-toxicity caused by the wear debris of UHMWPE will not occur absolutely. In consequence, the rolling artificial joint can prevent the trend of long-term loosening of the prosthesis efficiently.
人工关节磨损碎屑导致的种植体周围骨吸收和骨溶解会引起长期松动。基于滚动摩擦力学设计了一种新型无超高分子量聚乙烯（UHMWPE）的滚动膝关节人工关节，以缓解这一问题。由于摩擦力低，屈伸阻力显著降低，假体与骨界面的应力也明显降低。此外，绝对不会出现UHMWPE磨损碎屑引起的生物毒性。因此，滚动人工关节能有效防止假体长期松动的趋势。
