ANATOMY AND SIGNIFICANCE OF FIXATION OF THE LUMBOSACRAL NERVE ROOTS IN SCIATICA
ANATOMY AND SIGNIFICANCE OF FIXATION OF THE LUMBOSACRAL NERVE ROOTS IN SCIATICA
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DOI：
10.1097/00007632-198309000-00014
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发表时间：
1983-01-01
期刊：
影响因子：
3
通讯作者：
MILLER, JAA
中科院分区：
文献类型：
--
作者：
SPENCER, DL;IRWIN, GS;MILLER, JAA
本文描述了9具新鲜成人尸体标本中54对腰骶神经根的解剖结构，特别注意了神经根与腰椎周围骨骼和韧带结构的固定。发现硬脑膜韧带固定硬脑膜和神经根，从硬脑膜主囊出口到椎间盘近端的后纵韧带和椎体骨膜。远端固定发生在与脊神经神经外鞘相连的椎间孔。总的安排是倾向于保持出神经根在椎管的前部。对这种解剖结构的力学分析解释了椎间盘突出如何施加压力到鞘外神经根，而不会压迫神经根到后方。讨论了硬脊膜韧带在坐骨神经痛综合征发病机制中的可能作用。
The anatomy of 54 pairs of lumbosacral nerve roots was described in 9 fresh adult cadaver specimens, with particular attention given to the fixation of the nerve roots to surrounding skeletal and ligamentous structures in the lumbar spine. Dural ligaments were identified fixing the dura and nerve roots at their exit from the main dural sac to the posterior longitudinal ligament and vertebral body periosteum proximal to the intervertebral disc. Distal fixation occurs at the intervertebral foramen where the epineural sheath of the spinal nerve is attached. The overall arrangement is one which tends to hold the exiting nerve root anteriorly in the spinal canal. Mechanical analysis of this anatomical arrangement explains how pressure can be applied to the extrathecal nerve root by a disc protrusion without compression of the nerve root against the posterior elements. The possible role of the dural ligaments in the pathogenesis of the sciatica syndrome is discussed.