Had spinal fusion of L4 and L5 in 2004. I'm pretty mobile now, have good days and bad days. I have pretty bad arthritis though. The worst part is the pretty constant back spasms at night. I'm a security system installer, so I'm in crawlspaces and attics a lot, and work pretty long hours. I'm pretty happy though, because I could barely walk before my surgery. The disc was pretty much gone and it was bone on bone. Good luck man, I highly recommend Dr. Maxy with Carolina Ortho in Hickory. He rotates between different offices so you may be able to catch him in a Carolina Ortho office in your area. If you have any questions, fire away.