512例老年男性髋部及腰椎骨密度测量结果分析

目的了解在老年男性中不同部位骨密度(BMD)随年龄的变化情况,为老年男性骨质疏松的诊治及骨折预测提供帮助.方法用美国Lunar公司DPX-L型双能量X线骨密度测定仪(DEXA),对512例年龄大于60岁老年男性腰椎前后位及髋部的BMD进行测定,按年龄分组进行统计分析.结果男性髋部及腰椎各部位的BMD随年龄的增长呈逐步下降趋势,但在65岁～89岁之间的L2、L3、L4、L2-4出现BMD略微上升.各组腰椎BMD值高于髋部BMD值,具有显著性差异(P＜0.001).结论在指导诊治老年男性骨质疏松及预测骨折过程中,髋部BMD的测定优于腰椎BMD的测定.而Wards三角的BMD值最有意义,可较早地反映骨量丢失情况.

Analysis of bone mineral density (BMD) of femur and lumbar spines in512 old men

Objectives To find out changes of BMD in lumbar spines(LS) and femur of old men with the age increasing,to guide the prior osteoporosis diagnosis and the fracture occur in old men. Methods Measure BMD of lumbar spines and femur by DEXA (LUNAR company, U.S. A) for 512 old men (age> 60y) at our out - patient department.The subjects were divided by age level to make statistics and analysis.Results BMD of different measure regions in LS and femur decrease with the age increasing, especially in femur. To BMD in LS, groups of 65 - 89 have a tendency to a higher level. The BMD in LS is much higher than that in femur in each group with significant difference (P<0.001).Conclusions The measurement of BMD in femur is sensitiver than that in LS to diagnose senile male osteoporosis and forecast fracture. The BMD of Wards' s triangle is the most significant to demonstrate early the bone loss.