I would like to help you improve your symptoms management, if I can. I will address each issue I find separately, as I don’t have much time. The first thing I notice is a possible torn Apical ligament. This ligament which joins the front of the skull opening (Clivus) to the top of the odontoid bone, is one of a group of ligaments that hold your head firmly to your neck, so it is quite important. The fact that you broke your odontoid shows that there were very strong forces acting upon that area, when you had your fall. It is quite possible that other ligaments within this group were torn too, so you might want to familiarise yourself with the anatomy of these and check through your other scan views. The way a torn ligament heals is by growing from each end, meeting in the middle, then tightening up (taking up the slack, so to speak) so it is very important to keep that area immobilised and in a good position, to give it chance to heal properly.