As Barry stated it will take a while before you will be able to get on a horse again.
I waited until my docs said it was all okay for me to be doing.
There is success after fusion surgery. Everyone is different in how they heal, the severity of injury, damages done and what function can be recovered. Nerves in general heal very slowly. Not to mention how Painful the suckers can be when they are all flared up. They do however calm down over time. In the first phases of healing they seem to get pretty excited tho.
Are you in an Aspen collar or something like it??? I hated the collar. Some surgeons do not even require it and others do. I was in mine for 6-8 weeks post op.
Take the time to heal, and put a lot of effort into your recovery, and the Physical therapy wehn you get to that point. And as hard as it may be ~ stay as positive as you can ~
Remember I am here and have had a fusion on my neck. 2 levels. So if you need some support or encouragement let me know....
You will get there. One day at a time...