I wish I had run across this earlier, I might have been able to help.
In 2005 my C5-C6 disc herniated. Immediate and intense shooting pain down my arm starting where the bicep meets the shoulder and ended in my thumb and forefinger. They wanted to do fusion (ACDF). The problem was that the adjacent discs (at C4-C5 and C6-C7) were degenerating also, so a fusion would have accelerated the degeneration of those adjacent discs. By the time I was 65 or 70 I would have had cascading fusions to the point where my entire neck would be immobile.
At the time, there were no disc replacements available that were approved by the FDA. So, I decided to wait. Plus, by this time I was involved in a claim with the VA as the original injury likely happened when I was on active duty. By the time I had the disc replaced, 7 years had passed. My surgeon said that although the disc replacement would remove the pressure on the nerve root at C5-C6 (the source of my pain), he said he could not guarantee that my pain would go away. It might be permanent.
I'm happy to report that a year after my surgery, all pain and numbness were gone.
Here's the thing - surgeons have NO IDEA what the outcome of a surgery will be. Any surgeon who says otherwise is lying. A good friend who is a surgeon told me that "Once the scalpel touches the skin, all bets are off." That doesn't mean that there aren't good surgeons, it just means that a good surgeon will not make guarantees one way or the other, for bad, or good outcomes. I found a guy who was extremely humble, extremely good, and made no promises.
I got 6 second opinions (or a 2nd, 3rd, 4th, 5th, 6th, and 7th opinion). What I found is a lot of guys - even surgeons - have no idea what they are talking about. By the time I was done doing my research, I knew as much about ACDF/ACDR surgeries than most of the doctors I was speaking with (other than actually performing them). I knew outcomes, I knew percentages, I had the results of clinical studies, etc. I knew exactly what I was getting into before I agreed to be cut on.
I had a Prodisc-C inserted. My surgeon was in and out in about 40 minutes. I left the hospital the same day with a hard collar, and removed the collar on day 4. I probably could have removed it on day 2 if I had wanted to. Disc replacements don't need to fuse. The guy I picked to do my surgery is the guy oncologists call when they need help unwrapping a cancerous tumor from around the spinal cord. He could have done my surgery in his sleep.
Lessons: Be your own advocate. Don't take anyone's word on anything. Do your own research. See doctors - a lot of doctors. Ask questions - a lot of questions. Make people dread seeing you walk through the door because they know you are going to ask them a dozen more questions. Learn to not care what they think. This is your life, no one is going to take care of you better than you are. Remember that wherever and whenever you quit, that's what you're settling for.