Mechanical and morphological variation of the human lumbar vertebral cortical and trabecular bone. Academic Article

abstract

• The nanoindentation technique was used to characterize the variation in the elastic modulus and hardness of human lumbar vertebral cortical and trabecular bone. The elastic modulus (and in most cases, the hardness as well) of axially aligned trabeculae cut in the transverse direction was significantly greater than in other orientations of vertebral cortical and trabecular bone. In all cases, the elastic modulus and hardness of bone in the load-bearing direction was greater than in corresponding bone types cut in the other directions. Scanning electron micrographs of cortical shell revealed the Haversian-like canal systems expected in secondary cortical bone, but it was difficult to differentiate by morphology cortical from trabecular bone in the human lumbar vertebrae.

authors

• Pharr, George

published proceedings

• J Biomed Mater Res

author list (cited authors)

• Roy, M. E., Rho, J. Y., Tsui, T. Y., Evans, N. D., & Pharr, G. M.

citation count

• 131

complete list of authors

• Roy, ME||Rho, JY||Tsui, TY||Evans, ND||Pharr, GM

publication date

• February 1999

publisher

• Wiley  Publisher

published in

• n0021-9304ISSN  Journal

keywords

• Aged
• Biomechanical Phenomena
• Elasticity
• Female
• Humans
• Lumbar Vertebrae
• Male
• Microscopy, Electron, Scanning
• Middle Aged
• Stress, Mechanical

Digital Object Identifier (DOI)

• 10.1002/(sici)1097-4636(199902)44:2<191::aid-jbm9>3.0.co;2-g

start page

• 191

end page

• 197

volume

• 44

issue

• 2

URL

• http://dx.doi.org/10.1002/(sici)1097-4636(199902)44:2%3C191::aid-jbm9%3E3.0.co;2-g