Femoral Expansion in Aging Women: Implications for Osteoporosis and Fractures
Femoral Expansion in Aging Women: Implications for Osteoporosis and Fractures
复制标题
老年女性股骨扩张：对骨质疏松症和骨折的影响
作者：
Richmond W. Smith;R. R. Walker
在2030名老年女性的股骨X线片中，随着皮质厚度的减少，股骨中段骨膜的直径增加。由于皮质面积扩大，骨膜增生超过骨内膜吸收。由于截面模量的增加大于皮质面积，因此抗弯曲破坏性与抗压碎性的比值增加，与股骨颈中观察到的变化形成明显对比。
In femoral radiographs of 2030 aging women, the diameter of the midshaft periosteum increased as cortical thickness declined. Since the cortical area enlarged, periosteal accretion exceeded endosteal resorption. Since the section modulus increased more than did cortical area, the ratio of flexural failure resistance to crush resistance increased, in apparent contrast to the changes observed in the femoral neck.