Ouch!
Hi Chris,
My sister-in-law had spinal fusion in her lower back, and has been pretty good for the past 8 years or so. She is very active, and is not one to let things stop her. She does get in pain and takes ibuprofen quite a bit, but doesn't seem in bad shape.
It really depends on the condition, as far as the options go. If nothing else, do discuss disk replacement with the doctor, however if your doctor doesn't do those also, he is only going to "sell you what he has/does", as that is where his mind is at. A surgeon recommends surgery (the kind HE does), a psychiatrist recommends therapy and antidepressants, a holistic healer recommends herbs, massage, etc. .... you get the idea. Like someone else said also, surgery is a business.
I have found searching the internet a GREAT value and source of information, and helpful when asking your doctor questions. I know your wife is in a lot of pain, and I do hope she can get the relief she needs. As someone said however, once done, fusion can't be undone.
I myself considered fusion for my own situation 10 years ago, and in my case it was good I didn't have it.... but like I said about my sister-in-law, some people gained their lives back from it.
My advice, do ALL your homework now, and don't give up... but do ALL your research NOW, BEFORE any surgery is begun.
Good luck to you and your wife, & family.
Paul