摘要
采用单光子吸收技术和双能Ｘ射线吸收技术，分别对健康成年男性桡骨中远１／３部位、腰椎和股骨近端的密度进行了测定。结果显示，皮质骨骨峰值较松质骨晚形成１０年，随着年龄的增长，各部位骨密度呈线性丢失（ｒ＝０．２４～０．３７，Ｐ＜０．０１）；皮质骨平均每１０年约丢失１．８７％～６．８６％，中轴骨骼松质骨每１０年平均丢失率为０．７２％～７．４２％；７０岁以后部分部位骨量丢失速率加快；骨折部位骨密度明显低于骨峰值。结果提示，男性存在着与年龄有关的骨丢失，皮质骨丢失的方式在某些方面与松质骨丢失不同。
Radial bone mineral density(BMD)was measured by single photon absorptiometry in 661men and the lumbar sping and hip BMD was determind using dual energy X-ray absorptiometry in 296normal men,with age range 20-90. Peak BMD apeared to ocuur early in cortical bone than trabecularbone.Linear regression anaisis showed that BMD steadily declined with age(r=0.24￣0.37,P<0.01).The radial bone loss was 1.87%￣6.68% per decade,whereas the BMd reduction in the lumbar spine andproximal femur was 0.72%￣7.42%.After age 70.a slightly accelerated BMD loss occured at the vari-ous sites.Low bone mass was found in the patients with hip fracture.It is concluded that men experiencean age-related bone loss,but pattern of bone loss may differ in several ways beween cortial and tra-becular bone.
出处
《解放军医学杂志》
CAS
CSCD
北大核心
1994年第3期199-202,共4页
Medical Journal of Chinese People's Liberation Army
关键词
骨密度
皮质骨
松质骨
男性
Bone mineral density
Single photon absorptiometry
Dual energy X-ray absorptiometry
