title: Stiffness of compact bone: effects of porosity and density.
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.
authors.affiliation: Department of Anatomy, West Virginia University Medical Center, Morgantown 26506.
authors.forename: M B
authors.initials: MB
authors.lastname: Schaffler
authors.forename: D B
authors.initials: DB
authors.lastname: Burr
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D001842:Bone and Bones / Q000502:physiology*; D002417:Cattle; D003720:Densitometry; D008297:Male; D008903:Minerals / Q000032:analysis
chemical_list: D008903:Minerals