Age-related changes in the tensile properties of cortical bone. The relative importance of changes in porosity, mineralization, and microstructure.

Abstract
Tensile testing to failure was done on 235 cortical specimens that had been machined from forty-seven femora from human cadavera. The donors had ranged in age from twenty to 102 years at the time of death. After mechanical testing, the porosity, mineralization, and microstructure were determ