Objective:Osteoporosis means that the bone weight per unit volume and bone strength reduce.which induce systematic osteonosus for increase of bone fragility.

• 目的:骨质疏松是指单位体积骨量的减少与骨强度的降低。骨量减少和骨显微结构受损既而引起骨脆性增加的系统性骨科疾病。