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一、前言骨质疏松症是系统性的骨骼疾病 ,其特征是低骨密质和骨组织微结构退化 ,从而造成脆性以及对骨折的易感性增加。骨质疏松症是世界范围的一个主要的健康问题 ,并随着时间的推移在逐渐严重。骨质疏松症影响 2 50 0多万美国人 [1]。美国对骨质疏松症患者每年的健康保健花费
I. INTRODUCTION Osteoporosis is a systemic skeletal disease characterized by the degeneration of the microstructure of low-density bones and bone tissue, resulting in brittleness and an increased susceptibility to fractures. Osteoporosis is a major health problem worldwide and is getting worse over time. Osteoporosis affects more than 25 million Americans [1]. US annual health care costs for osteoporosis patients