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The Relationship between Trabecular Bone Structure Modeling Methods and the Elastic Modulus as Calculated by FEM
Joint Authors
Nowicki, Krzysztof
Cichański, Artur
Topoliński, Tomasz
Mazurkiewicz, Adam
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Medicine
Information Technology and Computer Science
Abstract EN
Trabecular bone cores were collected from the femoral head at the time of surgery (hip arthroplasty).
Investigated were 42 specimens, from patients with osteoporosis and coxarthrosis.
The cores were scanned used computer microtomography (microCT) system at an isotropic spatial resolution of 36 microns.
Image stacks were converted to finite element models via a bone voxel-to-element algorithm.
The apparent modulus was calculated based on the assumptions that for the elastic properties, E=10 MPa and ν=0.3.
The compressive deformation as calculated by finite elements (FE) analysis was 0.8%.
The models were coarsened to effectively change the resolution or voxel size (from 72 microns to 288 microns or from 72 microns to 1080 microns).
The aim of our study is to determine how an increase in the distance between scans changes the elastic properties as calculated by FE models.
We tried to find a border value voxel size at which the module values were possible to calculate.
As the voxel size increased, the mean voxel volume increased and the FEA-derived apparent modulus decreased.
The slope of voxel size versus modulus relationship correlated with several architectural indices of trabecular bone.
American Psychological Association (APA)
Topoliński, Tomasz& Cichański, Artur& Mazurkiewicz, Adam& Nowicki, Krzysztof. 2012. The Relationship between Trabecular Bone Structure Modeling Methods and the Elastic Modulus as Calculated by FEM. The Scientific World Journal،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-501300
Modern Language Association (MLA)
Topoliński, Tomasz…[et al.]. The Relationship between Trabecular Bone Structure Modeling Methods and the Elastic Modulus as Calculated by FEM. The Scientific World Journal No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-501300
American Medical Association (AMA)
Topoliński, Tomasz& Cichański, Artur& Mazurkiewicz, Adam& Nowicki, Krzysztof. The Relationship between Trabecular Bone Structure Modeling Methods and the Elastic Modulus as Calculated by FEM. The Scientific World Journal. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-501300
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-501300