After phenobarbital sodium 40 mg/kg was injected into abdominal cavity of all the rats by Bennett method,the rats in CCI group were placed with four loose 4- 0 chromic catgut ligatures around the nerve shaft of the right sciatic nerve;

• 按Bennett法,大鼠腹腔注射戊巴比妥钠40mg/kg后,假手术组暴露右侧坐骨神经不结扎,慢性坐骨神经挤压损伤组在该神经主干部位,用4-0铬制羊肠线松结扎4道。