Stiffness of compact bone: Effects of porosity and density

Mitchell B. Schaffler, David B. Burr

Research output: Contribution to journalArticle

445 Scopus citations

Abstract

Stiffness of compact bone is found to be highly and nonlinearly dependent on its porosity, its complement, bone volume fraction and apparent density. Elastic modulus decreases as a power (0.55) of increasing porosity and increases both as a power of increasing bone tissue volume (10.92) and increasing apparent density (7.4). These data indicate that small changes in the amount or density of compact bone tissue exert a more pronounced influence on its stiffness than would similar changes in trabecular bone.

Original languageEnglish (US)
Pages (from-to)13-16
Number of pages4
JournalJournal of Biomechanics
Volume21
Issue number1
DOIs
StatePublished - 1988

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ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

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