Schaffler M B, Burr D B
Department of Anatomy, West Virginia University Medical Center, Morgantown 26506.
J Biomech. 1988;21(1):13-6. doi: 10.1016/0021-9290(88)90186-8.
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.
密质骨的硬度被发现高度且非线性地依赖于其孔隙率、孔隙率的补数、骨体积分数和表观密度。弹性模量随着孔隙率增加的幂次（0.55）而降低，随着骨组织体积增加的幂次（10.92）和表观密度增加的幂次（7.4）而增加。这些数据表明，密质骨组织量或密度的微小变化对其硬度的影响比对小梁骨类似变化的影响更为显著。
