骨质疏松的危险因素及防治Ｊ．Ｍ．Ｌａｎｅ等骨质疏松的特征是骨量减小、骨的纤维结构退变，脆性增加易于骨折。原发性骨疏松为非内分泌性及明确疾病所致的骨质疏松。全美患者约２千万，每年发生骨折１２０万例（包括２８万例髓部骨折），１９９２年骨折治疗费用１００亿... Risk factors for osteoporosis and prevention and treatment J. M. Lane and other osteoporosis is characterized by decreased bone mass, bone fibrous structure degeneration, increased brittle fracture. Primary osteoporosis is non-endocrine and a clear disease caused by osteoporosis. About 20 million patients in the United States, each year 1.2 million cases of fractures (including 280,000 cases of pulp fractures), 1992 fracture treatment costs 10 billion ...