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and characterization of open-cell structures of trabecular bone

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  • S. J. Ramos-Infante
  • M. A. Pérez

Abstract

This work aimed to perform a detailed in vitro and in silico characterization of open-cell structures, which resemble trabecular bone, to elucidate osteoporosis failure mechanisms. Experimental and image-based computational methods were used to estimate Young′s modulus and porosities of different open-cell structures (Sawbones; Malmö, Sweden). Three different open-cell structures with different porosities were characterized. Additionally, some open-cell structures were scanned using a microcomputed tomography system (μCT) to non-destructively predict specimen Young′s modulus of the structures by developing voxel-based and tetrahedral finite element (FE) models. A 3D reconstruction and FE analyses were used. The experimental and computational results with different element types (linear and quadratic tetrahedrons and voxel-based meshes) were compared with Sawbones data (Sawbones; Malmö, Sweden) revealing important differences in Young′s modulus and porosities. The specimens with high and low volume fractions were best represented by linear and quadratic tetrahedrons, respectively. These results could be used to develop new osteoporosis-prevention strategies.

Suggested Citation

  • S. J. Ramos-Infante & M. A. Pérez, 2017. "and characterization of open-cell structures of trabecular bone," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 20(14), pages 1562-1570, October.
    • Handle: RePEc:taf:gcmbxx:v:20:y:2017:i:14:p:1562-1570
    DOI: 10.1080/10255842.2017.1390086
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    References listed on IDEAS

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    1. E. Verhulp & B. Van Rietbergen & R. Müller & R. Huiskes, 2008. "Micro-finite element simulation of trabecular-bone post-yield behaviour – effects of material model, element size and type," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 11(4), pages 389-395.
    2. Dominique P. Pioletti, 2010. "Biomechanics in bone tissue engineering," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 13(6), pages 837-846.
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