I am 2 years post ACDF with donor bones and hardware, and next week, I am finally worn down enough that I am going to see a pain management doctor for the first time. I, too, sit at a desk all day and I have a long commute that puts me in heavy stop/go traffic for 2 hours a day. I at least was able to convince my boss to let me work 4 days a week, so I am off on Wednesdays. So, its drive/work two days, spend a day recovering, then drive/work two days and spend the weekend whining. I do feel better when I get up and move, prior to surgery I was a distance runner. Now I run about 2 miles a day after work just to stretch, and I walk at lunch. But I understand. I still have the pain in my neck, I don't sleep well, I wake up with tremors in my affected arm (my dominant arm, I might add), I still have numbness in my forearm and weakness in my elbow. I have had 2 post surgery X rays, and one post surgical MRI, all indicating everything is where it's supposed to be, yet I am still in pain. I take it pretty easy on the pain meds, but I am finally in such a fix, that I know I need something more than what I am doing. One thing that really bothered me about my after care was that I was in a hard collar 24/7 for 6 wks, and got no physical therapy. I have no input other than to tell you I feel your pain, literally. I hope that you find some relief.
I had a cervical fusion, one level C6 back in 2007. I woke up in awe that my finger, arm, and neck pain were IMMEDIATELY gone. I never wore a brace and that paticular disk has never bothered me again. My fusion was done with hardware and a donor bone was used. BUT BUT BUT once you have a fusion the disks above and below usually do weaken increasing your chance of a herniation at another site.
If your doctor never did an xray or anything to make sure that the fusion worked then he isn't a very good doctor in my opinion. If you do know that it did fuse and you are having these issues it could be a different level bothering you.
I have had issues at other levels but will not go the route of another fusion. It is like dominos. I do physical therapy and exercise to build the muscles around the disks to hold them where they belong as best they can. Even though I have pain at another level the damage to my cord is not to the extent that it was with my first fusion. I have not lost mobility in my hands or arm, but I do deal with pain and occasional numnbness in a few fingers on one hand. All of this comes and goes and is not constant. A fusion is never a fix all for anything at any level. It is simply the best solution available right now for herniated disks.