Duta Alina, Popa Dragos-Laurentiu, Vintila Daniela Doina, Buciu Gabriel, Dina Nicolae Adrian, Ionescu Adriana, Berceanu Mihaela Corina, Calin Daniel Cosmin
Faculty of Mechanics, University of Craiova, 200512 Craiova, Romania.
Faculty of Nursing, Titu Maiorescu University, 210102 Targu Jiu, Romania.
Diagnostics (Basel). 2022 Aug 12;12(8):1952. doi: 10.3390/diagnostics12081952.
(1) Introduction: The changes in the joint morphology inevitably lead to prosthesis, but the hip pathology is complex. The hip arthroplasty is a therapeutic solution and can be caused, most frequently, by primary and secondary coxarthrosis due to or followed by traumatic conditions. The main aim of this study was to find the method of revision hip prosthesis that preserves as much bone material as possible and has sufficiently good mechanical strength. (2) Materials and Methods: In this study, in a first step, the two revision prostheses were performed on bone components taken from an animal (cow), and then, they were tested on a mechanical testing machine until the prostheses physically failed, and the force causing their failure was determined. (3) Results: These prostheses were then modelled in a virtual environment and tested using the finite element method (FEM) in order to determine their behaviour under loading from normal human gait. Displacement, strain, and stress maps were obtained. (4) Discussion: Discussions on hip revision prostheses, method, and theory analysis are presented at the end of the paper. (5) Conclusions: Important conclusions are drawn based on comparative analyses. The main conclusion shows that the both orthopaedic prostheses provide a very good resistance.
(1) 引言：关节形态的改变不可避免地导致假体的使用，但髋关节病理情况复杂。髋关节置换术是一种治疗手段，最常见的病因是原发性和继发性髋关节炎，其可由创伤性情况引起或继发于创伤性情况之后。本研究的主要目的是找到一种翻修髋关节假体的方法，该方法能尽可能多地保留骨材料且具有足够良好的机械强度。(2) 材料与方法：在本研究中，第一步，在取自动物（牛）的骨组件上进行两种翻修假体的操作，然后，在机械测试机上对它们进行测试，直至假体出现物理性失效，并确定导致其失效的力。(3) 结果：然后在虚拟环境中对这些假体进行建模，并使用有限元方法（FEM）进行测试，以确定它们在正常人类步态加载下的行为。获得了位移、应变和应力图。(4) 讨论：本文末尾对髋关节翻修假体、方法和理论分析进行了讨论。(5) 结论：基于对比分析得出了重要结论。主要结论表明，这两种骨科假体都具有很好的抗性。
