LUMBAR RADIOFREQUENCY NEUROTOMY/ABLATION (RFA)

This minimally-invasive procedure, also called radiofrequency rhizotomy, reduces or eliminates the pain of damaged facet joints by disrupting the medial branch nerves that carry pain signals. This procedure is performed with local anesthetic and IV sedation.

Cannula Inserted

A needle like tube called a cannula is inserted and positioned near the irritated medial branch nerves. An X ray or fluoroscope is used to help position the cannula properly.

Electrode Inserted

A radiofrequency electrode is inserted through the cannula. The doctor tests the electrodes position by administering a weak electric current. If the stimulation recreates the pain without any other muscular effects, the electrode is positioned correctly.

Nerve Treated

The doctor uses the electrode to heat and cauterize the nerve. This disrupts its ability to communicate with the brain, blocking the pain signals. The doctor may treat multiple nerves if needed.

End of Procedure

After the procedure, the electrode and cannula are removed. Although pain may increase slightly for the first week after the procedure, the patient usually has excellent relief from pain within a month. Successful RF last approximately a year and longer than steroid injections.