Re: C5-6-7 fusion or ADR
If you have not done so, request a copy of the MRI (it will come to you on a CD) and the written radiologist's report. Start a file for your own use. This will save time in the long run, especially when going from doctor to doctor. I feel it is important in this day and age to take control of your own health issues and learn as much as you can about them...as you are doing trying to learn about ADR vs. fusion.
It is important for you to know if your injury is affecting the spinal cord. Sometimes the disc will push out beyond the disc space and can push into the sac that contains the spinal cord. This can restrict the flow of the spinal fluid and can have an impact on the cord itself.
If you are interested in ADR and you are a candidate for the surgery, which is still not widely done in the US, it is important to find a spine surgeon who has the experience and training to perform it successfully. This is very important because when something goes wrong with ADR, it can go very wrong.
But first you need to explore all conservative options to be clear in your own mind that surgery is absolutely necessary. With a whiplash injury, it is often the ligaments and soft tissue that are more affected, and it can take years to heal. You might want to look into myofascial release therapy if you know there is no spinal cord compression.