Validation of a finite element model of the human metacarpal

Barker, D.S.; Netherway, David J.; Krishnan, Jeganath; Hearn, Trevor C.

doi:10.1016/j.medengphy.2004.10.001

Cited by 35 publications

(38 citation statements)

References 35 publications

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“…The published density-elasticity equation provided metatarsal strain predictions that were highly correlated with experimental measurements (r 2 0.94), in accordance with some of the better FE predictions reported in the literature for other bones (209,216,217).…”

Section: Discussionsupporting

confidence: 83%

“…Although a considerable number of bones were used in this study when compared to other validation experiments (209,216), it is important to note that these bones came from a small number of donors (n=4) of advanced age. Any potential differences in bone tissue quality of a younger cohort (90,222) may lead to a systemic overestimation of bone strain using the modeling approach and density-elasticity equations developed herein, because the CT-based FE models would not capture important details related to bone microarchitecture or the mechanical integrity of the collagen network (90,222).…”

Section: Discussionmentioning

confidence: 99%

“…However, two other studies (170,227) have found that the anisotropic material properties had a significant effect at certain locations on the model, depending on the model's boundary and loading conditions. A study on FE models of the human metacarpal (216) found that anisotropic material properties improved FE predictions for torsional and combined axial and bending loads. To our knowledge, anisotropic FE modeling of the metatarsals have not yet been implemented.…”

Section: Study Limitationsmentioning

confidence: 99%

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Experimental validation of finite element predicted bone strain in the human metatarsal

Fung

Loundagin

Edwards

2017

Journal of Biomechanics

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The objective of this study was to verify and validate a finite element modeling routine for the human metatarsal, which is a common location for stress fractures. Experimental strain measurements on 33 human cadaveric metatarsals subject to cantilever bending were compared with strain predictions from finite element (FE) models generated from computed tomography images. For the material property assignment of the FE models, a published density-elasticity relationship was compared with density-elasticity equations developed using optimization techniques. The correlations between the measured and predicted and predicted strains were very high (r 2 ≥0.94) for all of the density-elasticity equations. However, the utilization of an optimized density-elasticity equation improved the accuracy of the finite element models, reducing the maximum error between measured and predicted strains by 10% to 20%. The finite element modeling routine could be used for investigating potential interventions to minimize metatarsal strains and the occurrence of metatarsal stress fractures.iii

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Section: Study Limitationsmentioning

confidence: 99%

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Experimental validation of finite element predicted bone strain in the human metatarsal

Fung

Loundagin

Edwards

2017

Journal of Biomechanics

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“…They used ship tibia for the analysis and used 45 ∘ strain rosette. Barker et al [7] tried to validate a finite element model of the human metacarpal. A right index human metacarpal was subjected to torsion and combined axial/bending loading using strain gauge and 3D finite element analysis.…”

Section: Introductionmentioning

confidence: 99%

Experimental Finite Element Approach for Stress Analysis

Erkliğ

Kütük

2014

Journal of Engineering

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This study aims to determining the strain gauge location points in the problems of stress concentration, and it includes both experimental and numerical results. Strain gauges were proposed to be positioned to corresponding locations on beam and blocks to related node of elements of finite element models. Linear and nonlinear cases were studied. Cantilever beam problem was selected as the linear case to approve the approach and conforming contact problem was selected as the nonlinear case. An identical mesh structure was prepared for the finite element and the experimental models. The finite element analysis was carried out with ANSYS. It was shown that the results of the experimental and the numerical studies were in good agreement.

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“…10 [2] for converting them into surface data, and CATIA Ver. 5.0 R20 [3] for generating the tetrahedral cell mesh and the stress analysis [4]. Finally, we compare the deformed CT image with CR images, and evaluated the effectiveness in several ways.…”

Section: Introductionmentioning

confidence: 99%

Generation and applications of CT images of the ideal standing position for total knee arthroplasty surgery

Doi¹,

Takahashi²,

Mawatari³

et al. 2013

Modelling in Medicine and Biology X

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CT images with body weight loading are desired for preoperative planning on TKA surgery. In our proposed method, we perform stress analysis by the finite element method (FEM) for bone mesh structure by generating CT images, and we estimate an ideal standing position of the loaded state (referred to as deformed CT images of the ideal standing position). We also compare the deformed CT image with CR images, and evaluate the effectiveness in several ways.

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Validation of a finite element model of the human metacarpal

Cited by 35 publications

References 35 publications

Experimental validation of finite element predicted bone strain in the human metatarsal

Experimental validation of finite element predicted bone strain in the human metatarsal

Experimental Finite Element Approach for Stress Analysis

Generation and applications of CT images of the ideal standing position for total knee arthroplasty surgery

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