脊神经后支性腰痛的解剖学和生物力学研究

The Anatomical and Blomechanical Research on Role of the Dorsal Ramus of Spinal Nerve In Low Back Pain

在8具新鲜成人尸体上解剖了腰段脊神经后支及其分支的走行与毗邻关系,并测定了后支在腰椎三维运动时所受的拉力。结果表明:1、后支从发出至过横突点是最易受损伤的部位。2、腰2后支所受牵拉力最大,最易受损伤。3、当腰椎不稳时,易发生后支性腰痛。4、X线片上有腰椎椎体后缘重影,双侧小关节间隙不对称,双侧椎弓根不对称等阳性发现是后支性腰痛诊断的参考依据。

Dissections of the dorsal rami of spinal nerves of L1-4 were performed in eight fresh human cadavers. including their branchs and adjacent strucures. The stretching force on dorsal rami of the left L1_4 was measured on the three-dimensional movement in normal and unstable spines. The results show that 1. the dorsal ramus between its origin and transverse process is most vulnerable to trauma 2. the stretching force on the dorsal ramus of L2 is the biggest and is most vulnerable to trauma. 3. When the lumbar spine is unstable.low back pain of the dorsal ramus origin is easy to be caused 4.if there are double shadow of the posterior border of the vertebral body.asymmetry of the bilateral facet joints and the bilateral vertebral pedicles in the spinal radiograph.it is of great value to the dignosis of low back pain of the dorsal ramus origin