Conclusion selective lumbosacral spinal nerve root block can relieve discogenic sciatica quickly and safely, which has the advantages of accurate puncture, target injection, medication accumulating on pathological tissue, good therapeutic effect and very few side effects. 结论选择性腰骶脊神经根阻滞能迅速缓解腰椎间盘突出症引起的根性坐骨神经痛,具有穿刺准确、靶位注射、药物集中、疗效确切和并发症少等优点。