The Finite Element Analysis of Osteoporotic Lumbar Vertebral Body by Influence of Trabecular Bone Apparent Density and Thickness of Cortical Shell

Oleg Ardatov; Algirdas Maknickas; Vidmantas Alekna; Marija Tamulaitienė; Rimantas Kačianauskas

doi:10.1515/ama-2017-0044

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The Finite Element Analysis of Osteoporotic Lumbar Vertebral Body by Influence of Trabecular Bone Apparent Density and Thickness of Cortical Shell

Acta Mechanica et Automatica

Volume 11 (2017): Issue 4 (December 2017)

By: Oleg Ardatov, Algirdas Maknickas, Vidmantas Alekna, Marija Tamulaitienė and Rimantas Kačianauskas

Open Access

|Dec 2017

Abstract

Osteoporosis causes the bone mass loss and increased fracture risk. This paper presents the modelling of osteoporotic human lumbar vertebrae L1 by employing finite elements method (FEM). The isolated inhomogeneous vertebral body is composed by cortical out-er shell and cancellous bone. The level of osteoporotic contribution is characterised by reducing the thickness of cortical shell and elasticity modulus of cancellous bone using power-law dependence with apparent density. The strength parameters are evaluated on the basis of von Mises-Hencky yield criterion. Parametric study of osteoporotic degradation contains the static and nonlinear dynamic analysis of stresses that occur due to physiological load. Results of our investigation are presented in terms of nonlinear interdependence between stress and external load.

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Articles in this issue

DOI: https://doi.org/10.1515/ama-2017-0044 | Journal eISSN: 2300-5319 | Journal ISSN: 1898-4088

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Language: English

Page range: 285 - 292

Submitted on: May 30, 2016

Accepted on: Nov 27, 2017

Published on: Dec 30, 2017

Published by: Bialystok University of Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

Bone Tissue Elasticity,

Finite Element Method,

Lumbar Vertebrae,

Osteoporosis

Related subjects:

Engineering,

Electrical engineering,

Electronics,

Mechanical engineering,

Mechanics,

Bioengineering and biomedical engineering,

Biomechanics,

Civil engineering,

Environmental engineering

© 2017 Oleg Ardatov, Algirdas Maknickas, Vidmantas Alekna, Marija Tamulaitienė, Rimantas Kačianauskas, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 11 (2017): Issue 4 (December 2017)