Percutaneous Intradiscal Radiofrequency as A Treatment for Radicular Pain From Lumbar Disc Herniation

Inclusion Criteria

• •1. 18-85 year-old patients with radicular pain from lumbar disc herniation for ≥ 3 months
• •2. Lumbar disc herniation ≤ 2 locations evidenced by MRI, with ≥ 50% remaining disc height, without disc sequestration
• •3. Previously treated with epidural steroid injection (ESI) and achieved ≥ 50 % pain relief from local anesthetic effect, confirming radicular pain from lumbar disc herniation, but did not respond to ESI (\< 50 % Pain relief or pain relief \< 3 months)