Clinical Research Directory

Inclusion Criteria: * Adults aged 18-65 years * Chronic low back pain lasting at least 3 months * Diagnosis of nonspecific chronic axial low back pain based on clinical evaluation and available imaging findings * No specific spinal, neurological, inflammatory, infectious, or malignant pathology explaining the pain * Baseline Visual Analog Scale (VAS) pain score \>4 * Clinically identifiable symptomatic side with more pronounced pain * Inadequate pain relief despite conservative treatment * Ability to attend both intervention sessions and follow-up visits * Willingness to participate and provision of written informed consent Exclusion Criteria: * Significant lumbar disc herniation or radiculopathy * Spinal stenosis, spondylolisthesis, or advanced degenerative spinal disease * Vertebral fracture, spinal infection, malignancy, or inflammatory rheumatic disease * Polyneuropathy or other neurological conditions affecting assessment * Fibromyalgia or widespread pain syndrome * Previous lumbar spine surgery * Active systemic infection or infection at the injection site * Coagulation disorders or anticoagulant/antiplatelet therapy that cannot be appropriately managed for the procedure * Known allergy to lidocaine or dexamethasone * Uncontrolled diabetes mellitus or hypertension * Severe hepatic, renal, or cardiac disease * Local anesthetic or steroid-containing interventional treatment in the lumbar region within the previous 3 months * Cognitive or psychiatric conditions preventing reliable completion of assessment scales * Inability to comply with the study protocol or follow-up visits