Has anyone had a Rhizotomy performed? I underwent a Rhizotomy last February but think that the peripheral nerves in my lumbar spine have grown back because my pain med doesn't seem to provide relief.

I have degenerative disease of the facet joints in my lumbar spine. The Rhizotomy can last 10-18 months or years. I just find it concerning that my nerves may be growing back right at 10 months. There is no way of knowing for certain if they have. My concern is that if I have a Rhizotomy before they have grown back, I will not only have no pain relief but will make it impossible for insurance to pay for another in case they grow back before insurance is willing to pay for another.

Anyone have advice?