I saw my surgeon today after my MRI scan 2 weeks ago and he said that despite our expectations of a prolapse on L4/L5, I actually have a bulge on L5/S1!! He says it is not bad and should resolve itself, but said a nerve block would help with the leg pain. Unfotunately it will do nothing to the back pain. He said given the severity of my back pain and the condition of those two discs, he feels that fusion is recommended. He said a 2 level fusion with instrumentation. I was not in the best place mental in the appointment - my father died unexpectedly 2 weeks ago and I only got home yesterday after a 10 hour flight so all the questions I had lined up for him slipped my mind. He is going to write a letter to my GP, with a copy to me outlining the surgery and the expectations so hopefully the detail I need will be in there.
Now I just need to decide whether to have a) the nerve block (the leg pain is much better than it was and miles better than the back pain) and b) the fusion.