I also had c5c6 fusion. I wasnt told how often the other discs cause problems after doing one. Usually the one above and below becomes problematic in 30% of people that have fusions. Thats the statistic that I have read. I have seen smaller numbers on one site which said it was around 7%. Whatever the figure is it doesnt matter if you are the one. Was you told this before surgery? Was that disc bulging before your previous surgery? I hope not but may have to address my c6c7 one day. I hope the artificial disc will be available then. Hopefully your symptoms will go away and you can avoid surgery. I wish I would have known about this domino effect, I would have refused surgery since I had no weakness or numbness yet. Good Luck and keep us informed how it goes.