【摘要】 对１５９套华北地区出土自然干燥成人腰椎７７０个进行测量，结果发现有狭窄的腰椎管３２套，占总数２０％；有狭窄的腰椎孔５５个，占总数的７％。其中属于腰椎孔矢径狭窄的有５４个，而腰椎孔横径狭窄的只有１个。说明腰椎管狭窄主要取决于腰椎孔矢径的大小，而和腰椎孔横径关系不大。狭窄部位以Ｌ３和Ｌ４最多，Ｌ５和Ｌ２次之，Ｌ１少见。更多还原

【Abstract】 lumbar vertebrae from 159 adult skeletons(naturally dried) unearthed in the area of North China were studied by measurement method.The findings showed that there are 32 cases of narrow lumbar canal(20% of 159),and 55 narrow vertebral foramina(7% of 770),of which 54 foramina are narrow in sagittal diameter,and only one foramen is narrow in cross diameter.This suggested that the so called"narrow lumbar canal"mainly depends upon the sagittal diameter of its foramen,but not upon the cross diameter.Most of narrow canals are in L 3 and L 4,the less in L 2 and L 5,and rarely in L 1.更多还原