收治腰神经根嵌压综合征２６例，诊断用压力下硬膜外造影术，定位定性用ＣＴＥ检查，临床符合率达９２％。治疗采用骨刀多孔开窗腰椎间孔内口解压扩大术。结论：定位定性诊断精确，采用骨刀多孔开窗法，不影响腰椎稳定性，同时也解决了术后硬膜囊广泛粘连的手术并发症，临床上效果优良。 Twenty-six cases of lumbar nerve entrapment syndrome were diagnosed under the pressure of diagnostic epidural angiography, and CTE was used to assess the location of the lumbar nerve root. The clinical coincidence rate reached 92%. Treatment of osteoporosis porous lumbar intervertebral mouth decompression augmentation. Conclusion: The qualitative and quantitative diagnosis of locating is accurate. The porous fenestration method with osteotome does not affect the stability of lumbar spine. It also solves the surgical complications of extensive adhesion of the dural sac after operation. The clinical effect is excellent.