Pre-emptive ADR?

[fortitudine]

Perhaps I should have been a bit more specific regarding pre-emptive ADR and my own case. I need ADR/fusion at c3/4 and 4/5. My NS said c2/3 would probably go eventually, and it would be a lot easier to fuse it now with the other 2 levels than to try and go in - I think he said through the mouth - later.
Anyway - it was that comment that terrified me and led me to the internet these great forums.

Mark, have you ever talked to Dr. Bertagnoli or Zeegers about this? I would guess not, since most of what they are doing is ADR at the damaged levels, and supposedly that will prevent adjacent-level problems. Still, there are times when a fusion is required, and I wonder if there stats being kept on the rate of adjacent level disease that would reveal that there is some value in pre-emptive ADR?