腰神经根鞘的解剖学观察及临床

An Anatomical Observation of Lumbar Nerve Root Sheath and its Clinical Significance

目的 :为研究腰腿疼痛等疾病与腰神经根鞘的关系提供解剖学依据。方法 :对 6 0侧成人尸体的腰神经根鞘的有关结构进行了解剖学观察与测量。结果 :(1 )从L1 ～L5,根鞘的长度、横径在逐渐增加 ,倾斜度在加大。 (2 )左、右根鞘的长度、横径基本对称。 (3)由上到下 ,根鞘开口逐渐减至 1孔。结论 :(1 )根鞘长度、横径的增加 ,与周围接触范围就加大 ,危险增大。 (2 )开口孔数的减少 ,鞘内的前、后根同时受累的机会就增加。

Objective:To provide an anatomic basis for studying the relationship between the lumbar spinal never root sheath and lumbocrural pain.Methods:Lumbar spinal nerve root sheaths were observed and measured on 30 adult cadaver specimens.Results:①The length、diameter and incline of nerve root sheaths were gradually bigger from L 1 to L 5.②The length and diameter of left and right nerve root sheaths were symmetrical.③The sheath had 2 apertures at L 1 and decreased to 1 aperture at L 5.Conclusion:①The root sheath is easier to be damaged by the length and diameter becoming bigger.②The vertral and dorsal nerve roots have more chance to be damaged when the apertures is gradually.