The study is designed as an observational study. Patients who have been treated and completed treatment for lumbar discopathy in our clinic will be followed. Patients will not be divided into groups beforehand, and this will not cause changes to the treatment plan. Patients who have undergone fluoroscopy-guided lumbar interlaminar epidural steroid injection (LESI) and ultrasound-guided lumbar erector spinae plane block (LESP), routinely performed in our clinic for the treatment of back and leg pain due to lumbar disc herniation, will be compared to the effectiveness of these methods on pain at baseline before the procedure and at 2, 6, and 12 weeks afterward using the Visual Analogue Scale for Pain Relief (VAS) and Oswestry Disability Index (ODI). The baseline values will be recorded from the patient files and by request before the start of follow-up.

Chronic low back pain (>3 months) is one of the chronic pain syndromes that most significantly impairs functionality. Lumbar disc herniation is one of the most common spinal degenerative conditions causing low back pain and radicular leg pain. Treatment options for this condition in pain clinics include minimally invasive treatments such as paravertebral plane blocks and epidural steroid injections. The use of interventional methods for low back pain has been increasing in recent years. The primary reason for this is the desire of patients who fail to achieve adequate relief with conservative treatment methods such as medical therapy and physical therapy to try relatively conservative methods before surgery. Two commonly used interventions for patients with lumbar disc herniation who do not respond to conservative treatment methods are fluoroscopy-guided LESI and ultrasound-guided LESP block, which we frequently perform in our clinic.

Patients who have undergone routine LESP and LESI in our clinic and who meet the inclusion criteria will be included in the study. Pain intensity and functionality will be assessed using the visual analog pain score and the Oswestry disability index.

Inclusion Criteria:

• Patients with chronic low back pain caused by L4-L5 and L5-S1 lumbar disc herniation accompanied by radicular pain, including those diagnosed by MRI, will be included.
• Patients with low back pain above VAS 5 for more than 6 weeks will be included.
• Failure of pain treatment with conservative methods such as analgesics and physical therapy

Exclusion Criteria:

• Patients who have previously undergone lumbar surgery,
• Patients with spinal deformity and stenosis,
• Patients with uncontrolled diabetes
• Patients allergic to the drugs to be used will not be included in the study.
• Presence of psychiatric comorbidity
• Local or systemic infection
• Coagulopathy
• Presence of rheumatological disease