Hemiarthroplasty of hip joint: An experimental validation using porcine acetabulum

Pawaskar, Sainath Shrikant; Grosland, Nicole M.; Ingham, Eileen; Fisher, John; Zhang, Jin

doi:10.1016/j.jbiomech.2011.02.140

Cited by 16 publications

(18 citation statements)

References 38 publications

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“…Validation should be at least equal to the expected difference between patient populations. In the simulation of joint contact mechanics, direct validation has been reported for models of the ankle [206], hip [131,324], and knee [193]. The methods used to generate the validated models have subsequently been used to model live subjects [185,208].…”

Section: Validationmentioning

confidence: 99%

Subject-Specific Analysis of Joint Contact Mechanics: Application to the Study of Osteoarthritis and Surgical Planning

Henak

Anderson

Weiss

2013

Journal of Biomechanical Engineering

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Advances in computational mechanics, constitutive modeling, and techniques for subject-specific modeling have opened the door to patient-specific simulation of the relationships between joint mechanics and osteoarthritis (OA), as well as patient-specific preoperative planning. This article reviews the application of computational biomechanics to the simulation of joint contact mechanics as relevant to the study of OA. This review begins with background regarding OA and the mechanical causes of OA in the context of simulations of joint mechanics. The broad range of technical considerations in creating validated subject-specific whole joint models is discussed. The types of computational models available for the study of joint mechanics are reviewed. The types of constitutive models that are available for articular cartilage are reviewed, with special attention to choosing an appropriate constitutive model for the application at hand. Issues related to model generation are discussed, including acquisition of model geometry from volumetric image data and specific considerations for acquisition of computed tomography and magnetic resonance imaging data. Approaches to model validation are reviewed. The areas of parametric analysis, factorial design, and probabilistic analysis are reviewed in the context of simulations of joint contact mechanics. Following the review of technical considerations, the article details insights that have been obtained from computational models of joint mechanics for normal joints; patient populations; the study of specific aspects of joint mechanics relevant to OA, such as congruency and instability; and preoperative planning. Finally, future directions for research and application are summarized.

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Section: Validationmentioning

confidence: 99%

Subject-Specific Analysis of Joint Contact Mechanics: Application to the Study of Osteoarthritis and Surgical Planning

Henak

Anderson

Weiss

2013

Journal of Biomechanical Engineering

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“…As yet, there seem to have been only two studies that have reported direct validation of FE models of the hip contact conditions against experiments. 10 , 23 Anderson et al 23 used an elastic model, while Pawaskar et al 10 used an ABAQUS biphasic model, which was unable to deliver solutions for the natural hip under physiological loading due to difficulties in obtaining convergence. In both these studies, the contact pressure and contact area were measured using pressure-sensitive films.…”

Section: Discussionmentioning

confidence: 99%

“…In this study, the material properties of the cartilage were based on a previous curve-fitted test for cartilage from another porcine hip, 10 and the tensile modulus in the T-C model was assumed to be 10 times higher than the aggregate modulus. Due to the potential variations in cartilage properties between different subjects, this simplification may potentially decrease the accuracy in the model predictions.…”

Section: Discussionmentioning

confidence: 99%

“…The solid phase of the isotropic models was represented by the neo-Hookean constitutive relationship with the properties adopted from a previous study ( Table 1 ). 10 Additionally, the isotropic model was run with twice the previously defined aggregate modulus 10 to investigate the sensitivity to this value. For the T-C model, the compressive aggregate modulus was the same as the isotropic model and the tensile modulus was set to 10 times higher.…”

Section: Methodsmentioning

confidence: 99%

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Experimental validation of a new biphasic model of the contact mechanics of the porcine hip

Wang

Zhang

et al. 2014

Proc Inst Mech Eng H

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Hip models that incorporate the biphasic behaviour of articular cartilage can improve understanding of the joint function, pathology of joint degeneration and effect of potential interventions. The aim of this study was to develop a specimen-specific biphasic finite element model of a porcine acetabulum incorporating a biphasic representation of the articular cartilage and to validate the model predictions against direct experimental measurements of the contact area in the same specimen. Additionally, the effect of using a different tension–compression behaviour for the solid phase of the articular cartilage was investigated. The model represented different radial clearances and load magnitudes. The comparison of the finite element predictions and the experimental measurement showed good agreement in the location, size and shape of the contact area, and a similar trend in the relationship between contact area and load was observed. There was, however, a deviation of over 30% in the magnitude of the contact area, which might be due to experimental limitations or to simplifications in the material constitutive relationships used. In comparison with the isotropic solid phase model, the tension–compression solid phase model had better agreement with the experimental observations. The findings provide some confidence that the new biphasic methodology for modelling the cartilage is able to predict the contact mechanics of the hip joint. The validation provides a foundation for future subject-specific studies of the human hip using a biphasic cartilage model.

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“…We should note that 3-dimensional FE model is also one of the physiological conditions. The 3-dimensional FE analyses have been studied with their own experimental material test (Gu and Li, 2011;Pawaskar et al, 2011;Henak et al, 2014;Osawa et al, 2014). The sliding condition with migrating contact area (Pawaskar et al, 2007: biphasic FE model;Caligaris and Ateshian, 2008: experimental study) is the other dynamic condition.…”

Section: Introductionmentioning

confidence: 99%

An estimation of mechanical propertes of articular cartilage for biphasic finite element analyses

Sakai

Hagihara

Hashimoto

et al. 2015

JBSE

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The purpose of this study is to estimate material properties of articular cartilage by curve fitting method using finite element (FE) analysis. While various material tests have been conducted to predict the behavior of articular cartilage, one of the recent interests was the accurate estimation of material properties under physiological and dynamic condition. In this study, cylindrical indentation was experimentally conducted in high compressive amount and high compression rate in considering the physiological condition. Each single specimen was sequentially exposed to compressive tests at definite deflection with different compressive amount and different compression rates and compressive creep test. The time-dependent compressive force given by a precise compression tester was utilized for estimation of material properties by curve fitting method with FE analysis. Five typical material properties, which represented total apparent Young's modulus, strain dependent permeability and fibril reinforcement by collagen network, were selected for the estimation process with depth-dependency of Young's modulus. In the curve fitting processes by FE analysis, each material property had specific roles on reproducing experimental time-dependent reactional force. A single material property set estimated in this study successfully reproduced the four different experimental time-dependent behaviors.

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Hemiarthroplasty of hip joint: An experimental validation using porcine acetabulum

Cited by 16 publications

References 38 publications

Subject-Specific Analysis of Joint Contact Mechanics: Application to the Study of Osteoarthritis and Surgical Planning

Subject-Specific Analysis of Joint Contact Mechanics: Application to the Study of Osteoarthritis and Surgical Planning

Experimental validation of a new biphasic model of the contact mechanics of the porcine hip

An estimation of mechanical propertes of articular cartilage for biphasic finite element analyses

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