A facet joint nerve rhizotomy involves "radiofrequency burning" of a very small nerve that goes to (innervates) the facet joint of your spine, either in the neck or low back. You are a candidate for such a procedure since you have achieved very good temporary relief of your pain following diagnostic facet joint nerve blocks performed earlier. Even though you obtained very good temporary relief with the diagnostic blocks, there is no guarantee that this procedure will give you very good sustained relief, but it is in your favor that it will. You will have no permanent numbness or weakness following this procedure. The only difference you will feel should be less pain. If this procedure is effective, you do not have to worry about possibly harming yourself because you cannot feel the pain. Your back will still be strong, and normal exercise or activities will not cause any damage. Should you have a severe injury, you will still be able to feel pain in that area.
Facet joint nerve radiofrequency rhizotomies are performed in a similar manner as the previous performed diagnostic facet joint nerve blocks. The difference being that instead of numbing the various facet joint nerves with a small amount of a local anesthetic, special needles are used to burn these nerves. During the procedure, very small amount of electricity is used to pinpoint the location of the nerves. You will be asked about any pressure or pain sensation in your back as the nerves are identified. Burning the nerve will cause a permanent or semi-permanent block of these nerves. The procedure may take between 45 and 90 minutes to be performed. Band-Aids may be applied to the needle sites. A nurse will monitor your blood pressure and pulse, and then review your discharge instructions with you before going home.