Methods. Autologous nucleus pulposus was applied to the peripheral of the L4 and L5 nerve roots and DRGs . Based on this animal model,Von Frey filaments and a thermal testing device (RTX-1 type) was used to quantify behavior test.

• 方法：通过半椎板切除，建立大鼠自体髓核移植的椎间盘突出动物模型，利用Von Frey 针丝及RTX-1型热痛测试仪检测大鼠疼痛相关神经行为改变；