I had lumbar fusion from L3-S-1 in 2016. I also had cage with screws, and I had scoliosis. So it was big surgery. I will say tough surgery but helped me tremendously. I would strongly suggest you use Neurosurgeon because of nerves involved as well as Spine. I used Dr Chen at Mayo-Florida and was pleased with him. Dr Chen is very skilled and compassionate Neurosurgeon.
I still have issued but not the same. I will be glad to answer anything I can if it helps you prepare.