胸腰段爆裂骨折后凸畸形不同测量方法比较

被引:15
作者
赵栋
邓树才
孙志明
马毅
赵合元
机构
[1] 天津市天津医院脊柱外科
关键词
胸腰段; 爆裂骨折; 后凸; X线片;
D O I
暂无
中图分类号
R683.2 [脊椎骨折]; R816.8 [外科、骨科];
学科分类号
100106 [放射医学]; 100220 [骨科学];
摘要
目的:比较常用胸腰段骨折侧位X线片不同测量方法测量后凸角度的可信度及可重复性。方法:40例胸腰段爆裂骨折患者的侧位X线片,让3位脊柱外科医师应用6种测量方法测量后凸角度,(1)伤椎头侧邻近椎体上终板和尾侧邻近椎体下终板平行线的垂线夹角;(2)伤椎下终板和头侧邻近椎体上终板平行线的垂线夹角;(3)伤椎头侧和尾侧邻近椎体后壁平行线的垂线夹角;(4)伤椎头侧邻近椎体下终板和尾侧邻近椎体上终板平行线的垂线夹角;(5)伤椎上终板和下终板平行线的垂线夹角;(6)后凸比率,即伤椎头侧邻近椎体前下缘至尾侧邻近椎体前上缘距离(a)/伤椎头侧邻近椎体后下缘至尾侧邻近椎体后上缘距离(b)。以3周为间隔分别独自测量两次后凸角度,对测量结果进行统计学分析。结果:方法1组内相关系数高度一致(r=0.84~0.95),其次是方法4(r=0.75~0.90)。各种测量方法三位测量医师所得结果组内一致性(重复测量5°以内变化)为76%98.5%,方法1显示较好的一致性(92.4%98.5%)。配对检验显示,不同观察者之间,组间可信度相关系数为0.53~0.90,方法1显示最高组间可信度相关系数(0.85,范围0.75~0.92),其次是方法4(0.81,范围0.71~0.89)。结论:测量伤椎头侧椎体上终板和尾侧椎体下终板平行线的垂线夹角作为骨折椎体后凸角具有最佳组内和组间可信度。
引用
收藏
页码:212 / 215+226 +226
页数:5
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