用于减少裂缝的水泥骨水泥髋关节附加层的研究。

Study of an Additional Layer of Cement Mantle Hip Joints for Reducing Cracks.

作者信息

Jamari J, Saputra Eko, Anwar Iwan Budiwan, van der Heide Emile

机构信息

Department of Mechanical Engineering, Engineering Faculty, Diponegoro University, Jl. Prof. Soedarto SH Tembalang, Semarang 50275, Indonesia.

Laboratory for Surface Technology and Tribology, Engineering Technology Faculty, Twente University, Postbox 217, 7500 AE Enschede, The Netherlands.

出版信息

J Funct Biomater. 2019 Sep 6;10(3):40. doi: 10.3390/jfb10030040.

DOI:10.3390/jfb10030040

PMID:31489934

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6787631/

Abstract

Failure of the cement mantle in total hip arthroplasty is not a simple phenomenon. Cracking, which can be caused by crack initiation and repeated loading, can cause loosening of the acetabular liner component. A previous study showed that addition of a metal layer between the liner and acetabular could reduce the stress at the contact surface of the cement mantle. This study elaborates on the performance of the additional layer. Several material properties of the layer were simulated using finite element analysis for maximum performance. A static contact analysis was used to simulate the stresses at the contact surface of the cement mantle. The results show that an additional layer of cobalt chrome produced the best performance.

摘要

全髋关节置换术中骨水泥套的失效并非简单现象。由裂纹萌生和反复加载引起的开裂会导致髋臼衬垫部件松动。先前的一项研究表明，在衬垫与髋臼之间添加金属层可降低骨水泥套接触面处的应力。本研究详细阐述了该附加层的性能。使用有限元分析模拟了该层的几种材料特性以实现最佳性能。采用静态接触分析来模拟骨水泥套接触面处的应力。结果表明，钴铬合金附加层性能最佳。