Oh my sympathies.
I have been there and I am here to say that there is much life after spinal fusion. I am another happy Dr. V. patient. I had contacted him on the recommendation of another accomplished triathlete. Dr. V told me that I would need a fusion. I had other doctors tell me that and follow it up with my running career would be finished. V told me just the opposite.
When I finally got up the courage, I called V and we proceeded. it has been less than a year. I had a fusion at L4-5. I walked a lot in the beginning. I followed the advice of Bob Cranny P.T. Soon I was swimming, running and cycling. I just completed Florida 70.3 with a P.R. and (more importantly) with no pain.
It should be noted that I tried everything before. I tried yoga, chiropractic, acupuncture, crystals, rolfing, massage, art, arrosti... the list goes on. Dr. V was the only one to give me hope.
Call him, (
http://www.bnasurg.com/villa.html)
Good Luck!