I do not believe there are special accommodations either, other than allowing you to board the plane early, especially if you use a cane or walker.
What I found extremely helpful on my recent trip was getting the very first seat behind first class...and the seat on the aisle. There is more leg room on these particular seats and being on the aisle will allow you to get up and down as you please to walk and stretch. I also believe the seats at the emergency exits have more room, but with back pain that is not a responsibility you would want, at least I didn't.
Definitely have your medications in your carry-on bag.
cervical fusion 2006
L4-5 surgery with cages, plates, and screws in 2005
MEDS: Fentanyl patch, Norco, Celexa, trazodone, and Flexeril
To handle yourself, use your head...to handle others, use your heart
I'm going to smile like nothing is wrong, act like everything is perfect, and pretend its not hurting me.