发育性颈椎管狭窄中椎板矢状径的X射线测量分析

摘要

Objective To measure the sagittal diameter of vertebral plate(SDVP) in the developmental cervical stenosis (DCS) group by cervical vertebral lateral X-ray film to provide a new idea for diagnosing DCS.Methods A total of 401 cervical vertebral X-ray films conforming to the standard were collected and divided into the non-DCS group and DCS group.On the lateral radiographs of the cervical spine,SDVP(the distance from the posterior edge of zygapophysial joint to spinal laminar line) at C3-C6 segments was measured,and the differences in SDVP were compared between the non-DCS group and DCS group.Then the differences were also compared between sexes.Results SDVP at C3-C6 segments was(5.23 ± 0.93),(5.55 ± 0.94),(5.64±0.97) and (5.12±0.84) mm in the non-DCS group,and (3.87±1.11),(3.66± 1.00),(3.77±0.92) and (2.99±0.72) mm in the DCS group,the differences between the two groups were statistically significant(P＜0.05),moreover SDVP had the same statistical difference between sexes(P＜0.05).Conclusion SDVP at C3-C6 segments in DCS patients is significant shortened compared with the normal person.%目的 在颈椎X射线侧位片上,分析椎板矢状径在发育性颈椎管狭窄(DCS)病例中诊断的价值.方法 收集符合标准的颈椎X线片401张.以Pavlov-Torg指数小于或等于0.75为诊断标准,将此401张颈椎X线片分为非DCS组和DCS组.测量C3～C6节段关节突关节后缘至棘突椎板线的距离(简称椎板矢状径),比较两组间椎板矢状径的差异,随后使用相同方法分别比较不同性别病例的椎板矢状径差异.结果 C3～C6节段非DCS组椎板矢状径分别为(5.23±0.93)、(5.55±0.94)、(5.64±0.97)和(5.12±0.84)mm,DCS组分别为(3.87士1.11)、(3.66±1.00)、(3.77±0.92)和(2.99士0.72)mm,两组之间差异具有统计学意义(P＜0.05),且不同性别之间椎板矢状径差异同样有统计学意义(P＜0.05).结论 DCS患者C3～C6节段椎板矢状径较正常人明显缩短.