Material selection of acetabular component in human hip prosthesis using finite element concepts

Kalayarasan, M.; Prakash, L.; Shankar, S.

doi:10.1504/ijecb.2013.056519

Cited by 12 publications

(2 citation statements)

References 32 publications

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“…A computational study of the von Mises stress on the bearings of total hip prosthesis via finite element method has been previously reported by Saputra et al [ 24 ] by who studied different combinations of bearing materials, both hard-on-hard and hard-on-soft such as Al 2 O 3 (aluminium oxide)-on-Al 2 O 3 , Al 2 O 3 -on-SS 316L (stainless steel 316L), CoCr (cobalt chromium)-on-CoCr, CoCr-on-SS 316L, and SS 316L-on-UHMWPE (ultra-high molecular weight polyethylene). Furthermore, Kalayarasan et al [ 25 ] also analyzed the von Mises stress on CoCr-on-UHWMPE, CoCr-on-CoCr, CoCr-on-CoCrMo (cobalt chromium molybdenum), and CoCr-on-Al 2 O 3 bearings. With more focus on hard-on-soft bearings, a similar investigation was carried out by Shankar et al [ 26 ] through a SS 316L-on-UHMWPE, CoCr-on-UHMWPE, CoCrMo-on-UHMWPE, and Titanium-on-UHMWPE bearings investigation.…”

Section: Introductionmentioning

confidence: 99%

Polycrystalline Diamond as a Potential Material for the Hard-on-Hard Bearing of Total Hip Prosthesis: Von Mises Stress Analysis

et al. 2023

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Due to polymeric wear debris causing osteolysis from polymer, metal ions causing metallosis from metal, and brittle characteristic causing fracture failure from ceramic in the application on bearing of total hip prosthesis requires the availability of new material options as a solution to these problems. Polycrystalline diamond (PCD) has the potential to become the selected material for hard-on-hard bearing in view of its advantages in terms of mechanical properties and biocompatibility. The present study contributes to confirming the potential of PCD to replace metals and ceramics for hard-on-hard bearing through von Mises stress investigations. A computational simulation using a 2D axisymmetric finite element model of hard-on-hard bearing under gait loading has been performed. The percentage of maximum von Mises stress to respective yield strength from PCD-on-PCD is the lowest at 2.47%, with CoCrMo (cobalt chromium molybdenum)-on-CoCrMo at 10.79%, and Al2O3 (aluminium oxide)-on-Al2O3 at 13.49%. This confirms that the use of PCD as a hard-on-hard bearing material is the safest option compared to the investigated metal and ceramic hard-on-hard bearings from the mechanical perspective.

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Section: Introductionmentioning

confidence: 99%

Polycrystalline Diamond as a Potential Material for the Hard-on-Hard Bearing of Total Hip Prosthesis: Von Mises Stress Analysis

et al. 2023

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“…10 The change in geometrical parameters like cup thickness, radial clearance and head diameter has considerable effect on contact pressure was analysed for different material combinations. 11 The wear of poly crystalline diamond (PCD)-on-PCD determined using finite element analysis was found to have least wear compared to metal-on-metal and ceramic-on-ceramic. 12 The main aim of this paper is to investigate the effect of various radial clearance values for the silicon nitride bearing couple over the wear and contact pressure using the finite element concepts.…”

Section: Introductionmentioning

confidence: 99%

Wear prediction on silicon nitride bearing couple in human hip prosthesis using finite element concepts

Shankar

Nithyaprakash²

2014

Proceedings of the Institution of Mechanical Engineers, Part J:

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Wear is one of the important tribological parameter that increases the revision rate of artificial hip implantation. Silicon nitride (Si3N4) is one of the promising ceramic materials with low wear rate and has been implanted in patients for the past 3 years. The objective of this paper is to analyse the effect of radial clearance over the contact pressure and wear of Si3N4 bearing couple, i.e. acetabulam cup and femoral head, using finite element concepts. The 3D force values for normal walking cycle of hip joint are used to predict the contact pressure and 3D rotation angles are used to calculate the sliding distance in determining the wear of bearing couple. The finite element results are validated initially with the previous experimental results. Then the analysis is extended to various radial clearance values. The increase in radial clearance values resulted in increase in linear wear but there is not much change in the volumetric wear.

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Predicting long-term wear performance of hard-on-hard bearing couples: effect of cup orientation

Shankar

Gowthaman

Uddin

2015

Med Biol Eng Comput

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Wear is the major cause of implant failure, resulting in expensive revision surgeries of total hip arthroplasty. Therefore, understanding of wear mechanism and its progression is crucial to improve the physiological performance of implants. This paper presents a three-dimensional (3D) finite element (FE) wear modeling approach to estimate evolution of wear in hard-on-hard bearing components with the effect of cup abduction angle. Three bearing couples were considered, and they were PCD-on-PCD, Al2O3-on-Al2O3 and Si3N4-on-Si3N4, while the cup abduction angle varied from 35° to 70° with an increment of 5°. By adopting actual physiological hip gait loading and rotational movement for normal walking cycle in FE modeling, the contact pressure and the sliding distance were calculated to predict wear. A femoral head of 32 mm in diameter was considered, while a constant frictional contact at the inference between head and cup was used. During simulation, the geometry of cup surface was updated at a reasonable interval of gait cycles to consider the effect of wear. Wear was simulated for up to 20 million cycles which is an equivalent of 20 years of implant's life in human body. Simulation results showed that compared to other two bearing couples, the predicted linear and volumetric wear in PCD-on-PCD couple exhibited the least wear evolution for all cup angles considered. The increase in abduction angle from 35° to 70° decreases the volumetric wear by 28 % for all three bearing couples, due to the reduction in sliding distance. Steep cup angle, e.g., 70° for Al2O3 and Si3N4 bearing couples, encountered edge contact, which leads to more wear. Further, wear results were discussed and analyzed with respect to in vitro and/or clinical studies available in the literature to justify the efficacy of wear modeling.

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Material selection of acetabular component in human hip prosthesis using finite element concepts

Cited by 12 publications

References 32 publications

Polycrystalline Diamond as a Potential Material for the Hard-on-Hard Bearing of Total Hip Prosthesis: Von Mises Stress Analysis

Polycrystalline Diamond as a Potential Material for the Hard-on-Hard Bearing of Total Hip Prosthesis: Von Mises Stress Analysis

Wear prediction on silicon nitride bearing couple in human hip prosthesis using finite element concepts

Predicting long-term wear performance of hard-on-hard bearing couples: effect of cup orientation

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