Clinical Research Directory

Inclusion Criteria: * Age between 25 and 65 years * Persistent low back and leg pain despite conservative treatment * Unilateral radicular pain accompanying chronic low back pain lasting longer than 3 months * Single-level lumbar disc herniation (LDH) confirmed by clinical evaluation and magnetic resonance imaging (MRI) * Low back pain and unilateral radicular leg pain with a Visual Analog Scale (VAS) score ≥4 * Provision of written informed consent to participate in the study Exclusion Criteria: * Lumbar epidural steroid injection within the previous 6 months or a history of major trauma * History of allergy to any of the medications to be administered * Body mass index (BMI) \>30 kg/m² * Unstable chronic medical disease, such as diabetes mellitus, hypertension, or heart failure * History of lumbar spine surgery * History of coagulopathy * History of malignancy * History of polyneuropathy * History of peripheral vascular disease * Presence of a psychiatric disorder or cognitive impairment that would prevent completion of questionnaires and assessment scales, including dementia or significant visual or hearing impairment * Local infection at the injection site or systemic infection * Pregnancy and/or breastfeeding * Neurological deficit in the lower extremities * Unwillingness to participate in the study