Results Bone mineral content, bone density, bone trabecules volume density, femur morphologic parameter and structural mechanics performance in rats of sham operation group were higher than in model group at different degree. 结果假手术组大白鼠左侧胫骨骨矿含量、骨密度、骨小梁体积密度、股骨几何参数以及结构力学性能皆不同程度高于模型组。