腰椎管狭窄症较常见,文献对其矢状径分析报道较多,但对其横径,尤其是对上关节突间距的研究较少,且测量点不够明确[胡有谷,陈伯华,周秉文,等.退行性腰椎管狭窄症的ＣＴ测量及意义.中华骨科杂志,1993,13(3):193],也未见上关节突间距与硬膜囊横径相关性研究的报道。本研究在200例 Lumbar spinal stenosis is more common, the literature reports more of its sagittal diameter, but its horizontal diameter, especially the research on the distance of the superior articular process less, and the measurement point is not clear enough [Hu Yougu, Chen Bohua, Zhou Bingwen, et al. Degenerative lumbar spinal stenosis CT measurement and its significance. Chinese Journal of Orthopedics, 1993,13 (3): 193], nor on the articular process and dural sac diameter of the correlation study reports. This study was performed in 200 patients