Mihale J, Bartko D, Turcáni P, Nováková Z
I. Neurologická klinika FN--LF UK, Bratislava.
Cesk Neurol Neurochir. 1990 Jul;53(4):257-63.
The purpose of the work was an analysis of lateral myelograms of the lumbosacral spine in the neutral position, in anteflexion and retroflexion from the aspect of the mobility of the dural sac and its relationship to the spinal canal. The group comprised 50 patients with clinically obvious discopathies and other vertebrogenic syndromes. The areas of the dural sac were measured planimetrically and evaluated by means of a computer. It was revealed: 1. The Soinal canal and dural sac are not static variables but dynamic ones. By movements of the lumbosacral spine the size of the dural sac changes and so does its shape. These phenomena can be evaluated not only qualitatively but also quantitatively. 2. The anteroposterior diameter of the dural sac on the myelograms in anteflexion and in retroflexion changes significantly, as compared with the neutral position, it increases during anteflexion and diminishes during retroflexion. 3. The area of the dural sac increases during anteflexion and diminishes in retroflexion, as compared with the neutral position. 4. Changes in the shape of the dorsal portion of the dural sac revealed in the segment of the discopathy are considered to be due to hypertrophy of the yellow ligaments.
这项工作的目的是从硬脊膜囊的活动度及其与椎管的关系方面，分析腰骶部脊柱在中立位、前屈位和后伸位时的侧位脊髓造影。该组包括50例临床诊断为明显椎间盘病变和其他脊椎源性综合征的患者。硬脊膜囊的面积采用平面测量法进行测量，并通过计算机进行评估。结果显示：1. 椎管和硬脊膜囊不是静态变量，而是动态变量。通过腰骶部脊柱的运动，硬脊膜囊的大小会发生变化，其形状也会改变。这些现象不仅可以进行定性评估，还可以进行定量评估。2. 与中立位相比，前屈位和后伸位脊髓造影上硬脊膜囊的前后径变化显著，前屈时增大，后伸时减小。3. 与中立位相比，硬脊膜囊的面积在前屈时增大，后伸时减小。4. 在椎间盘病变节段发现的硬脊膜囊背侧部分形状的改变被认为是由于黄韧带肥厚所致。
