Yes, I have had RFAs for SI joint many times. I have pretty severe lumbar issues, so I have had varying degrees of success with the RFAs. I definitely get some relief, but that usually last a few months. My son had just one and that has brought relief for him for several years. It's a relatively easy procedure done under mild sedation, and it takes about a day before I'm back to normal. I definitely suggest physical therapy, if you are not already doing so. We lose a lot of muscle with SI pain because we just don't exercise as we did or should. This increases SI problems. I hope you have a good pain mgmt doc who can guide you through this process. Good luck and let us know how everything turns out! Sue