Revell P A, Weightman B, Freeman M A, Roberts B V
Arch Orthop Trauma Surg (1978). 1978 May 30;91(3):167-81. doi: 10.1007/BF00379748.
Polyethylene in the form of a concave bearing surface at the hip wears very slowly, and clinical and histological evidence suggests that the volume of debris so released is well tolerated. However, significantly greater volumetric wear rates are produced when (1) polyethylene is used as the convex component of a joint and (2) abrasives such as PMMA or bone enter the joint. Further, large quantities of polyethylene debris lead to the replacement of bone at the bone-cement interface by soft tissue. Evidence is presented which strongly suggests that this mechanism can produce joint component loosening.
髋关节处呈凹面支承面形式的聚乙烯磨损非常缓慢，临床和组织学证据表明，如此释放出的碎屑量具有良好的耐受性。然而，当（1）聚乙烯用作关节的凸面部件，以及（2）诸如聚甲基丙烯酸甲酯（PMMA）或骨等磨料进入关节时，会产生明显更高的体积磨损率。此外，大量的聚乙烯碎屑会导致骨水泥界面处的骨被软组织替代。所提供的证据有力地表明，这种机制会导致关节部件松动。
