Hi I had minimal invasive spinal fusion of l4-5 June 22nd. I had a lot of different pains going on. Numbness in right leg all the way to toes. It later disappeared in right but went to left. I had hip and buttocks pain, groin pain which they did not think fusion would do anything for groin pain. Leg pain. I was dealing with this for 2 1/2 years. I was holding out for a device that just recently fda approved which I thought sounded better than fusion, but unfortunately 2 Dr's. said it wouldn't work for me. Maybe because I have too much scoliosis. Anyway all these aches and pains and numbness I had before spinal fusion I wondered is it because of my spinal stenosis and spondylolisthesis. Well now that I've had my fusion I'm thinking yes. Even my groin pain is gone. I only now in my left groin have it feels like someone squeezing an organ occasionally which I did have before but not the groin pain I was referring to. The groin pain would start when walking around at lower panty line which Dr. thought was arthritis. But pretty much all pain is gone or deteriating quite a bit. I only took pain meds 4 days. Hope you do well with your surgery.