Objective:To find the clinical significance and value by using Dual Energy X ray Absorptionmetry (DEXA)as a quantitative measure of callus.

• 目的:应用双能X线骨密度测定仪(DEXA)观察骨折愈合过程中骨痂的骨密度变化,说明临床测定骨折愈合程度的方法。