Kreuscher H, Sandmann G
Institut für Anaesthesiologie der Städtischen Kliniken Osnabrück.
Reg Anaesth. 1989 May;12(3):43-5.
The structure of the spinal dura mater and the consequences of puncturing the dural tissue with different types of spinal needles were examined. There is no uniformly longitudinal parallel arrangement of dural fibers in human lumbar dura mater from the segments L3-5, but as shown in both scanning electron microscope imaging and polarized light microscopy the small collagenous fibrils are connected by cross-linked bridges. After perforation with Whitacre's pencil-point needle a kind of double layer membrane surrounds the puncture hole and might be responsible for the rearrangement of dural fibers and sealing of the hole after removal of the needle, like wings closing over each other (curtain-effect). This double layer membrane was not seen after dural puncture with sharp Quincke-bevelled needles.
对硬脊膜的结构以及不同类型的脊髓穿刺针穿刺硬脊膜组织的后果进行了研究。在L3 - 5节段的人类腰段硬脊膜中，硬脊膜纤维不存在统一的纵向平行排列，但如扫描电子显微镜成像和偏光显微镜所示，小的胶原纤维通过交联桥相连。用惠特克铅笔尖针穿刺后，一种双层膜围绕着穿刺孔，可能负责硬脊膜纤维的重新排列以及在拔出针后穿刺孔的封闭，就像翅膀相互合拢（窗帘效应）。用尖锐的奎克斜面针进行硬脊膜穿刺后未观察到这种双层膜。
