发育性颈椎管狭窄中椎板矢状径的X射线测量分析

Analysis on X-ray measurement of vertebral plate sagittal diameter in developmental cervical canal stenosis

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C_3~C_6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 C_3~C_6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±1.11)、(3.66±1.00)、(3.77±0.92)和(2.99±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C_3~C_6节段椎板矢状径较正常人明显缩短。

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.SDV16（the distance from the posterior edge of zygapophysial joint to spinal laminar line） at C3 C6 segments was measured, and the differences m 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 ±0.9.3）, （ 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.