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Investigation of contact behavior on a model of the dual-mobility artificial hip joint for Asians in different inner liner thicknesses

引用

World Journal of Orthopedics 2024年第4期15卷 321-336页

作者： Taufiq Hidayat muhammad Imam Ammarullah Rifky Ismail Eko Saputra m danny pratama lamura Chethan K N Athanasius Priharyoto Bayuseno J Jamari Department of mechanical Engineering Universitas Muria KudusKudus 59352Central JavaIndonesia Department of mechanical Engineering Universitas DiponegoroSemarang 50275Central JavaIndonesia Undip Biomechanics Engineering&Research Centre Universitas DiponegoroSemarang 50275Central JavaIndonesia Center for Biomechanics Biomaterials Biomechatronics and Biosignal Processing Universitas DiponegoroSemarang 50275Central JavaIndonesia Department of mechanical Engineering Politeknik Negeri SemarangSemarang 50275Central JavaIndonesia Department of Aeronautical and Automobile Engineering Manipal Institute of TechnologyManipalManipal Academy of Higher EducationManipal 576104KarnatakaIndia

BACKGROUND The four components that make up the current dual-mobility artificial hip joint design are the femoral head,the inner liner,the outer liner as a metal cover to prevent wear,and the acetabular *** acetabular cup and the outer liner were constructed of 316L stainless *** the same time,the inner liner was made of ultra-high-molecular-weight polyethylene(UHmWPE).As this new dual-mobility artificial hip joint has not been researched extensively,more tribological research is needed to predict *** thickness of the inner liner is a significant component to consider when calculating the contact *** To make use of finite element analysis to gain a better understanding of the contact behavior in various inner liner thicknesses on a new model of a dual-mobility artificial hip joint,with the ultimate objective of determining the inner liner thickness that was most suitable for this particular type of dual-mobility artificial hip *** In this study,the size of the femoral head was compared between two diameters(28 mm and 36 mm)and eight inner liner thicknesses ranging from 5 mm to 12 *** the finite element method,the contact parameters,including the maximum contact pressure and contact area,have been evaluated in light of the Hertzian contact *** simulation was performed statically with dissipated energy and asymmetric *** types of interaction were surface-to-surface contact and normal contact *** The maximum contact pressures in the inner liner(UHmWPE)at a head diameter of 28 mm and 36 mm are between 3.7-13.5 mPa and 2.7-10.4 mPa,*** maximum von mises of the inner liner,outer liner,and acetabular cup are 2.4–11.4 mPa,15.7–44.3 mPa,and 3.7–12.6 mPa,respectively,for 28 mm *** the maximum von mises stresses of the 36 mm head are 1.9-8.9 mPa for the inner liner,9.9-32.8 mPa for the outer liner,and 2.6-9.9 mPa for the acetabular cup.A head with a diameter of 28 mm should have an inner line

关键词： Contact behavior Contact pressure Finite element analysis Dual-mobility Artificial hip joint

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