Running-in behavior of dual-mobility cup during the gait cycle: A finite element analysis.

IF 1.7 4区 医学 Q3 ENGINEERING, BIOMEDICAL
Taufiq Hidayat, Rifky Ismail, Mohammad Tauviqirrahman, Eko Saputra, Muhammad Imam Ammarullah, M Danny Pratama Lamura, Athanasius Priharyoto Bayuseno, Jamari
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Abstract

The running-in process is considered an essential aspect of the comprehensive wear process. The phenomenon of running-in occurs during the initial stages of wear in the prosthetic hip joint. Within the field of tribology, the running-in phenomenon of the hip joint pertains to the mechanism by which the contact surfaces of the artificial hip joint components are adjusted and a suitable lubricating film is formed. During the process of hip joint running-in, there is an interaction between the metal surface of the ball and the joint cup, which results in adjustments being made until a steady state is achieved. The achievement of desirable wear existence and reliable performance of artificial hip joint components are reliant upon the tribological running-in of the hip joint. Despite the establishment of current modeling approaches, there remains a significant lack of understanding concerning running-in wear, particularly the metal-on-polyethylene (MoP) articulations in dual-mobility cups (DMC). An essential aspect to consider is the running-in phase of the dual mobility component. The present study employed finite element analysis to investigate the running-in behavior of dual mobility cups, wherein femoral head components were matched with polyethylene liners of varying thicknesses. The analysis of the running-in phase was conducted during the normal gait cycle. The results of this investigation may be utilized to design a dual-mobility prosthetic hip joint that exhibits minimal running-in wear.

双移动杯在步态周期中的跑进行为:有限元分析
磨合过程被认为是全面磨损过程的一个重要方面。磨合现象发生在人工髋关节磨损的初始阶段。在摩擦学领域,髋关节的磨合现象与调整人工髋关节部件接触面并形成适当润滑膜的机制有关。在髋关节磨合过程中,球的金属表面和关节杯之间会产生相互作用,从而进行调整,直至达到稳定状态。人工髋关节部件能否达到理想的磨损状态和可靠的性能,取决于髋关节的摩擦磨合。尽管建立了当前的建模方法,但对磨合磨损的了解仍然严重不足,特别是双活动度杯(DMC)中的金属-聚乙烯(MoP)铰接处。需要考虑的一个重要方面是双活动组件的磨合阶段。本研究采用有限元分析来研究双活动度杯的磨合行为,其中股骨头组件与不同厚度的聚乙烯内衬相匹配。对磨合阶段的分析是在正常步态周期内进行的。研究结果可用于设计一种磨损最小的双活动度假体髋关节。
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来源期刊
CiteScore
3.60
自引率
5.60%
发文量
122
审稿时长
6 months
期刊介绍: The Journal of Engineering in Medicine is an interdisciplinary journal encompassing all aspects of engineering in medicine. The Journal is a vital tool for maintaining an understanding of the newest techniques and research in medical engineering.
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