Radiofrequency Ablation (RFA)

Fluoroscopy-guided thermal denervation of medial branch nerves and facet joints for lasting relief of axial cervical, thoracic, and lumbar pain — performed by Tzvi Grossman, MD.

How Radiofrequency Ablation Works

Radiofrequency ablation uses precisely controlled thermal energy to interrupt pain signal transmission along the medial branch nerves — the small nerves that carry pain signals from the facet joints to the brain. By creating a targeted, heat-induced lesion at each nerve, RFA provides durable relief from axial back and neck pain that is facetogenic in origin.

At SSMC, Dr. Grossman performs RFA under real-time fluoroscopy, confirming cannula placement at the classic target positions (waist of the superior articular process for lumbar; centromedial to the articular pillar for cervical) before applying radiofrequency energy. Motor and sensory testing is performed prior to lesioning to confirm proper needle position and patient safety.

Prerequisite: Diagnostic Medial Branch Blocks

  • Typically two confirmatory medial branch blocks required
  • ≥50–80% pain relief on both blocks predicts RFA success
  • Insurance generally requires documented positive MBBs
  • Dr. Grossman performs diagnostic blocks at SSMC

Pain Patterns Addressed

  • Cervical: neck pain, occipital referral, cervicogenic headache
  • Thoracic: mid-back pain, paraspinal aching
  • Lumbar: axial low back pain, buttock referral
  • Sacroiliac joint-related pain (lateral branch RFA)

Procedure Details

  • Performed prone under local anesthesia with mild sedation
  • Fluoroscopic AP, oblique, and lateral views used
  • Sensory (50 Hz) and motor (2 Hz) testing before lesioning
  • Lesion temperature typically 80–85°C for 60–90 seconds per level

Expected Outcomes

  • Relief onset: 2–4 weeks after procedure
  • Duration: 6–18 months as nerve regenerates
  • Repeatable: RFA can be repeated when pain returns
  • Functional improvement: supports PT and rehabilitation