Methods To choose one chink of lumbar disc to do epidural block puncture by injecting 2% lidocaine,prednisoni and other medicines to epiclural block.

• 方法 选择椎间盘突出的上一个椎间隙行硬膜外穿刺,将2%25利多卡因和醋酸泼尼松龙等药物注入硬膜外腔。