颈椎关节突关节面倾角测量特点及临床意义  

Characteristics and clinical significance of declination angles on the lower cervical facet joints

作　　者：王怀云[1,2] 何海龙[1] 李华[3] 张桦[1] 朱云荣[1] 叶晓健[1] 

机构地区：[1]第二军医大学附属长征医院骨科,上海200003 [2]解放军福州总院第一附属医院骨科 [3]第二军医大学附属长征医院影像科

出　　处：《脊柱外科杂志》2011年第6期357-359,共3页Journal of Spinal Surgery

基　　金：上海市教委科研创新项目(092281)

摘　　要：目的观察正常成年人下颈椎关节突关节面倾斜角度测量特点,探讨其正常值范围及临床意义。方法随机抽取门诊正常成年人颈椎侧位X线片500张,利用Unisight放射影像处理软件逐个测量其C3～7小关节突关节面倾角。结果 C3～7倾角大小依次分别为:61.9°±5.4°、54.8°±4.7°、50.7°±4.9°、55.8°±5.1°、63.4°±5.3°。C3～7倾角值大小呈"U"形分布,以C5最小,C7最大,各倾角均值>45°。经统计分析,各个下颈椎小关节突关节面倾角大小比较可以概括为C7>C3>C4=C6>C5。结论下颈椎小关节突关节面倾角不同,了解其分布特点有利于理解颈椎生物力学特性及相关颈椎疾病、颈椎外伤的发病机制。Objective To measure the angle of declination on the lower cervical facet joints（C_3-7） in normal adults,and to investigate the range of normal values and the clinical significance.Methods A total of 500 X-ray films in cervical lateral position were randomly selected from normal outpatients.The angles of declination on the lower cervical facet joints（C_3-7） were measured by Unisight system.Results The angles of declination from C_3 to C_7 were 61.9°±5.4°,54.8°±4.7°,50.7°±4.9°,55.8°±5.1°,and 63.4°±5.3°,respectively.The distribution of angle values from C_3 to C_7 appeared in a ＂U＂ shape with the minimum value at C_5 and the maximum values at C_7.The mean angles of declination were above 45°.Statistical analysis indicated that the values of declination angle were as follows： C_7C_3C_4=C_6C_5.Conclusion The distribution characteristics of declination angles on the lower cervical facet joints can help to comprehend the biomechanics of cervical vertebra and the pathogenesis of diseases and trauma related to cervical vertebrae.

关 键 词：颈椎 椎关节突关节 摄影测量法 

分 类 号：R813.1[医药卫生—放射医学]