Simulation of Wear in a Spherical Joint With a Polymeric Component of the Total Hip Replacement Considering Activities of Daily Living

Pakhaliuk, Vladimir; Poliakov, Aleksandr

doi:10.22190/fume171226006p

Cited by 11 publications

(16 citation statements)

References 32 publications

(58 reference statements)

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“…4,5 On the other hand, numerical wear models of hip joint prostheses are mostly used to simulate wear tests, as reviewed in Mattei et al 6 and Wang et al 7 Only in few cases, in vivo loading conditions from instrumented HAs 5,6 and kinematics from motion analysis recordings 8,9 are simulated. One example by the present authors is described in Mattei et al 10 and Mattei and Di Puccio 11 ; more recently, studies [12][13][14] compare wear predictions caused by several daily activities. All these investigations demonstrate how sensitive wear is to the loading conditions, and they suggest that using ISO 14242 for wear assessment can underestimate what happens, particularly in younger and more physically demanding patients.…”

Section: Introductionmentioning

confidence: 70%

“…Though some studies describe the type 35 or the frequency 36 of daily activities, specific data for all the activities considered in the present study are not available. Combining data from current literature, 5,14 the following numbers of task executions over 12 hours (i.e., cycles) were estimated and simulated to provide an estimate of daily wear: 1818 cycles of normal gait (40% of all 4545 cycles), 182 cycles of fast walking (4%), 1091 cycles of stair negotiation (24%, namely 12% stairs up and 12% stairs down), 1090 cycles of squatting (24%, representative of a 12% chair sitting and a 12% chair rising), and 364 cycles of lunges (8%). This scenario is indeed a relatively demanding one in terms of wear damage, and it was selected to be representative of a physically active subject.…”

Section: Wear Modellingmentioning

confidence: 99%

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Combination of musculoskeletal and wear models to investigate the effect of daily living activities on wear of hip prostheses

Mattei

Tomasi

Artoni

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Numerical wear predictions are gaining increasing interest in many engineering applications, as they allow to simulate complex operative conditions not easily replicable in the laboratory. As far as hip prostheses are concerned, most of the wear models in the literature are based on the simulation of gait (recommended also in experimental wear tests), since gait is considered the most frequent and important motor task to recover after arthroplasty. However, since joint prostheses have been increasingly implanted in younger people, high loads and potentially severe conditions, e.g. due to sporting activities, should also be considered for a more reliable wear assessment of these implants. In this study, we propose a profitable combination of musculoskeletal and analytical wear modelling for the prediction of wear caused by common daily activities in metal-on-plastic hip arthroplasties. Several motion analysis data available in the literature (walking, fast walking, lunge, squat, stair negotiation) were selected and the effects of such motor tasks on prosthesis wear were investigated, both separately and in combination. Additionally, for comparative purposes, wear prediction for simplified gait conditions prescribed by the ISO 14242 standard, were also considered. Results suggest that this latter case produces lower wear depth and volume with respect to a relatively demanding combination of the selected daily activities. The preliminary results of the present study represent a first step towards the auspicious goal of validating the proposed procedure for in silico trials of hip arthroplasties.

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Section: Introductionmentioning

confidence: 70%

Section: Wear Modellingmentioning

confidence: 99%

Combination of musculoskeletal and wear models to investigate the effect of daily living activities on wear of hip prostheses

Mattei

Tomasi

Artoni

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…In addition, in [2], it was studded that one of the lowest friction coefficients is possessed by a pair of ceramic head-on-polyethylene liner made of ultra-high molecular weight polyethylene (UHMWPE). The simulation results we performed earlier indicate that the amount of wear products of such a friction pair is significantly less than in a metal-on-UHMWPE or metal-onmetal pair [3][4]. In addition, it can be reasonably assumed that when using a friction pair of a partially regular micro texture in the form of dimples, applied, for example, to the THR head surface, a ceramic-on-UHMWPE pair will be more effective from a tribological point of view.…”

Section: Introductionmentioning

confidence: 86%

The Ceramic Modular Head Improvement in the Design of a Total Hip Replacement

2021

Self Cite

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For the first time, a design of a modular ceramic ball head of a total hip joint replacement (THR) friction pair has been developed, which has the properties of a metal in conjunction with the stem neck and the properties of a ceramics on bearing surface of the pair. This is achieved by creating a low-cost, low-toxic, durable fixed connection of the head made of alumina or zirconia ceramics and the titanium-based alloy sleeve to obtain a brazed joint that is efficient in human synovial fluid. With the help of finite element analysis, a quantitative assessment of the strength and rigidity of the proposed head design was performed and its use in modern hip arthroplasty was indicated. The approbation of the proposed design solutions for creating a THR ceramic head with a titanium-based alloy sleeve brazed was carried out.

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“…Thanks to the advances in computational techniques and resources, researchers have been using modelling and simulation of fluid flow in gearbox systems using computational fluid dynamics (CFD) [4] as well as the finite element analysis method. Pakhaliuk [5] calculated the overall wear of a spherical joint by simulating the linear and the volumetric wear according to Archard's law and the mathematical wear model.…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of a Crossed Helical Gearbox Using FEM

Miltenović

Banić

2020

TFAMENA

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Overheating of gearboxes with crossed axes, such as crossed helical gearboxes, is one of the greatest disadvantages of these gearboxes in comparison with other drives, such as gearboxes with bevel or cylindrical gears. High friction results in the overheating of the transmission and the occurrence of scuffing. The main cause of the overheating is the generation of heat inside the gearbox due to bearing friction, sealing friction and above all, friction between tooth flanks during engagement. By applying the finite element method, thermal stability of a gearbox was predicted, and this procedure was verified on the case of a crossed helical gearbox with an axial distance of 30 mm. Based on the performed numerical investigation, a new procedure for the prediction of heat generation in the crossed helical gear transmission was proposed.

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Simulation of Wear in a Spherical Joint With a Polymeric Component of the Total Hip Replacement Considering Activities of Daily Living

Abstract: Abstract. The present study assesses the impact of the main typical activities of patients' daily living (ADL) after total hip arthroplasty (

Cited by 11 publications

References 32 publications

Combination of musculoskeletal and wear models to investigate the effect of daily living activities on wear of hip prostheses

Combination of musculoskeletal and wear models to investigate the effect of daily living activities on wear of hip prostheses

The Ceramic Modular Head Improvement in the Design of a Total Hip Replacement

Thermal Analysis of a Crossed Helical Gearbox Using FEM

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