股骨近端骨密度定量CT测量及其在骨折手术前评估的作用

被引：13

作者：

危杰 ^{[1
]}

伊辰 ^{[1
]}

王满宜 ^{[1
]}

王军 ^{[1
]}

张玉富 ^{[1
]}

高明 ^{[1
]}

苏永彬 ^{[2
]}

王玲 ^{[2
]}

徐黎 ^{[2
]}

程晓光 ^{[2
]}

机构：

[1] 北京积水潭医院创伤骨科

[2] 北京积水潭医院放射科

来源：

中国骨与关节杂志 | 2014年 / 3卷 / 11期

关键词：

骨密度; 体层摄影术,X线; 髋骨折; 骨钉; 定量CT;

D O I：

暂无

中图分类号：

R687.3 [骨骼手术];

学科分类号：

100220 [骨科学];

摘要：

目的探讨定量CT（quantitative computed tomography,QCT）测量股骨近端的松质骨骨矿物质密度（bone mineral density,BMD）对股骨近端内固定物头钉的选择的指导价值。方法选择2011年1月至2011年12月,我院收治的50例股骨颈骨折或股骨粗隆间骨折患者作为骨折组,其中男23例,女27例,年龄17～94（63.8±16.3）岁;招募75位年龄匹配的健康受试者作为健康组,其中男18例,女57例,年龄23～76（61.2±10.4）岁。使用QCT分别对骨折组健侧和健康组双侧股骨近端的不同兴趣区域内的BMD进行测量和分析。结果骨折组健侧股骨头、股骨颈及粗隆部的骨密度分别为（153.0±37.6）mg/cm3、（24.9±39.7）mg/cm3、（26.6±30.6）mg/cm3,健康组（左侧股骨近端）股骨头、股骨颈及粗隆部的骨密度分别为（220.2±46.1）mg/cm3、（74.8±49.1）mg/cm3、（70.8±41.3）mg/cm3,骨折组各部分骨密度均低于健康组,差异有统计学意义（P<0.05）。股骨头与股骨颈和股骨粗隆部的骨密度下降的平均值不平行。结论骨质疏松是股骨近端骨折的危险因素;股骨粗隆部的骨密度并不能完全反映股骨头的骨密度;QCT是目前测量股骨头骨密度的惟一方法;术前使用QCT评估股骨头的BMD对于内固定物头钉的正确选择提供了依据。

引用

页码：830 / 834

页数：5

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