Transforaminal epidural steroid injection (TFESI) has been increasingly preferred in patients who can not benefit from conservative approach in the treatment of lumbosacral radiculopathic pain due to lumbar disc herniation. The aim of our study is to evaluate the effect of metabolic syndrome on the treatment results of transforaminal epidural steroid injection in patients with chronic radicular low back pain due to lumbar disc herniation.

Inclusion Criteria:

• lumbar radiculopathy due to lumbar disc herniation, unresponsive to conservative treatments, duration of pain is at least 3 months, Patients aged 18 and above

Exclusion Criteria:

• the cases when fluoroscopy or epidural injection is contraindicated (coagulation disorders, pregnancy etc...), to have a history of lumbar spinal surgery, inflammatory diseases (rheumatoid arthritis, spondyloarthropathy), spinal infection or malignancy, systemic infection, Spondylolisthesis or spinal stenoz at the involved or adjacent segments, allergies to local anesthetics, contrast dyes or steroids, Refusal of a patient, History of prior lumbar spine surgery, presence of hip pathology (avascular necrosis, congenital hip dislocation etc...