Inclusion Criteria:  Aged> 18 years Participation in the study voluntarily Diagnosis of radiculopathy caused by spinal stenosis or disc herniation after physical examination and imaging (BT or MRI)  Exclusion Criteria:  Cauda equina syndrome or rapidly progressing neurological deficit previous spine surgery local site infection history of allergy to local anesthetic and contrast agents acute or chronic unstable medical disease psychiatric illness anticoagulant therapy