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A comparison of porosity, fabric and fractal dimension as predictors of the Young's modulus of equine cancellous bone.

Authors
  • Haire, T J
  • Hodgskinson, R
  • Ganney, P S
  • Langton, C M
Type
Published Article
Journal
Medical Engineering & Physics
Publisher
Elsevier
Publication Date
Nov 01, 1998
Volume
20
Issue
8
Pages
588–593
Identifiers
PMID: 9888237
Source
Medline
License
Unknown

Abstract

The purpose of this study was to compare the structural parameters of fabric and fractal dimension as predictors of the Young's modulus of equine cancellous bone. Eight 15 mm cubes of cancellous bone were obtained from three equine third metacarpal bones. Young's modulus was determined for the three orthogonal directions. The fabric and fractal dimension were calculated for each of the six exposed faces of each cube. Fractal dimension plus porosity provided a higher explanatory power for Young's modulus (R2 = 78.7%. P < 0.0001) than fabric plus porosity (R2 = 69.2%, P < 0.0001). Fractal dimension was also significantly correlated with fabric (R2 = 53.8%, P < 0.0001). Although this novel method for combining fractal dimension data into a pseudo-directionally dependent predictor of Young's modulus requires further validation over a greater range of porosities and differing cancellous bone tissues, its potential has been demonstrated.

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