胸椎黄韧带骨化的流行病学调查——993例以胸部症状来诊患者的CT观察  

Epidemiological survey of ossification of the ligamentum flavum in thoracic spine:CT imaging observation of 993 cases

作　　者：郎宁[1] 袁慧书[1] 王宏磊[1] 廖晶[1] 李曼[1] 郭福新[1] 史珊[1] 陈仲强[2] 

机构地区：[1]北京大学第三医院放射科,北京市100191 [2]北京大学第三医院骨科,北京市100191

出　　处：《中国脊柱脊髓杂志》2011年第9期764-768,共5页Chinese Journal of Spine and Spinal Cord

摘　　要：目的：研究胸椎黄韧带骨化（ossification of the ligamentum flavum,OLF）发生年龄、节段分布、形态变化等的流行病学特点。方法：回顾性分析2010年2月以胸部症状来我院就诊的993例患者（男506,女487,年龄5～102岁,平均60岁）的胸部多排探测CT（multidetector computed tomography,MDCT）片、轴位片结合矢状位CT片,分析胸椎黄韧带骨化的患病率及发生的节段、厚度、位置、硬膜囊压迫等情况,观察性别、年龄及发生节段等与OLF的关系。患病率采用《北京市2008年人口年龄构成统计》进行人群标化。结果：总体标化患病率为63.9%;男性标化患病率（68.5%）高于女性（59.0%）;50~59岁年龄组的患病率最高（79.2%）,但10~19岁人群也有OLF发生,其患病率为50.0%;T10~T11（44.0%）和T11~T12（41.6%）节段OLF的患病率亦较高。结论：被调查人群中,胸椎OLF患病率较高,出现年龄较早,发生于下胸段多于中上胸段,患病率与年龄具有一定的相关性。Objective：To evaluate the prevalence,morphology,and distribution of ossification of the ligamentum flavum in thoracic spine.Methods：Retrospective analysis was made on 993 patients（M∶F=506∶487） with chest sympotoms who underwent MDCT since February 2010 in our hospital.The mean age was 60 years（range=5-102）.Sagittal and axial images were analysed together.The segment,thickness,location and the condition about the dural sac were recorded.Result：The prevalence in male（68.5%） was higher than that in female（59.0%）.The highest prevalence was in the patients in 50-59 years age group,but OLF also happened early in 10-19 years age group.The highest prevalence was in T10-11（44.0%） and T11-12（41.6%）.Conclusion：The prevalence of ossification of the ligamentum flavum was highest in 50-59 years age group but also happened in early age.OLF occurs more frenquently in the lower than upper and middle thoracic region and its prevalence is getting higher with aging.

关 键 词：骨化 黄韧带 胸椎 流行病学 

分 类 号：R681.5[医药卫生—骨科学]