TOPS (Total Posterior Spine) Procedure for Spinal Stenosis

I have severe spinal stenosis and have been recommended to have a fusion of L4/L5/S1. While at the Mayo Clinic this week, I was told in is possible that the surgeon would do the TOPS procedure, which looks like it would give me much more movement in my lower back. Wondered if anyone else has had this and could tell your experience with it. The nurse told me it would be up to the surgeon, whether or not they would perform that procedure. I’m not sure how to determine whether I’m a good candidate for it and thought others might have some insight into that.