【摘要】 背景:哪些经腰椎关节突和椎板骨骼肌附着点标记的神经元末梢可以进入椎间盘呢?椎间盘的感受器通路尚不清楚。目的:观察家兔经腰椎间盘的感受器通路形态学特征。方法:8只家兔在CT引导下经L3～4腰椎椎间盘分别注射荧光逆行神经追踪剂核黄进行逆行神经追踪,按注射后18,36h均分为2组,取不同部位连续冰冻切片观察神经末梢部位,并记录曝光时间。结果与结论:家兔腰椎间盘感受器通路网络由交感神经节及节后神经元、小肠节细胞、脊神经节3大神经网络组成。作用的靶点分别在腰椎间盘纤维环、腰椎间盘髓核、腰椎间关节滑膜、胃黏膜、小肠黏膜、肌膜等,与腰椎关节突和椎板骨骼肌附着点的感受器通路在交感神经节及节后神经元、小肠节细胞、脊神经节、3大神经网络相重叠。且盘内注药可引起多个脊神经节内的炎症反应。更多还原

【Abstract】 BACKGROUND:Which skeletal muscle labeled peripheral neurons at attachment points of the lumbar facet and lamina can enter the disc? The receptor pathway via the lumbar intervertebral disc is unclear.OBJECTIVE:To observe the morphologic characteristics of the receptor pathway via the lumbar intervertebral disc.METHODS:Injection of fluorescent retrograde nerve tracer into the L3-4 segments of eight rabbits was performed for retrograde nerve tracing.The rabbits were divided into two groups:one group at 18 hours after injection,and the other group at 36 hours after injection.Consecutive frozen sections from different zones were taken for observation of nerve end,and the exposure time was recorded.REUSLTS AND CONCLUSION:Receptor pathway network of the lumbar intervertebral disc in rabbits was composed of sympathetic ganglia and postganglionic neurons,intestinal ganglion cells,and spinal ganglion.Targeted sites were lumbar disc annulus,lumbar intervertebral disc nucleus,lumbar synovial membrane,gastric mucosa,intestinal mucosa,fascia,etc.,overlapped with the receptor pathway at the sympathetic ganglia and postganglionic neurons,intestinal ganglion cells,spinal ganglia.Disc administration can cause inflammatory reactions of many spinal ganglia.更多还原