中文摘要：

骨微损伤能启动骨重建,骨重建障碍而导致微损伤积累可引发骨折。扫描电镜、同步加速器射线μ-CT和高分辨磁共振显像是研究骨微损伤的新方法,骨理化构成和年龄对微损伤发生和发展有重要影响,骨细胞在微损伤修复中起重要作用,骨微损伤研究有利于代谢性骨病防治。

英文摘要：

Microdamage can trigger bone remodeling. Failing of remodeling will result in accumulation of microdamage and subsequent fracture. Scanning electron microscopy, synchrotron radiation μ-CT and high resolution magnetic resonance imaging are the advanced methods of microdamage detecting. The age, physical and chemical makeup of bone influence the initiation and propagation of microdamage. Osteocytes play a crucial role in the repairing of micrdamage. The study of bone microdamage would contribute to the prevention and treatment of metabolic bone diseases.