Makes me wonder what they do with someone that has no legs. Can they not ride any rides with height restrictions?
I actually got curious about your question and did some Googling. Disney has nothing officially posted about amputees, and I have seen people with prosthetic limbs around the park. So I assume it's handled on a case-by-case basis.
Rumour has it that on Soarin', apparently, amputees above the knee are asked to wear the center strap (the one they use to buckle in little kids).
Universal said this, a few years back:
"Guests must remove prosthetic legs or feet before riding Dragon Challenge™, Harry Potter and the Forbidden Journey™ or Pteranodon Flyers® to prevent hazards or loss due to ride forces. Guests must remove prosthetic limbs before riding Hollywood Rip Ride Rockit® to prevent hazards or loss due to ride forces.
Prosthetic limbs should be properly attached before riding the following attractions to prevent hazards or loss due to ride forces: Revenge of the Mummy®, The Simpsons Ride®, Woody Woodpecker’s Nuthouse Coaster®, Incredible Hulk Coaster®, Jurassic Park River Adventure®, Flight of the Hippogriff™, Dudley Do-Right’s Ripsaw Falls®, Popeye & Bluto’s Bilge Rat Barges®, Doctor Doom’s Fearfall®. Any guest with prosthetic arms or hands will be required to ensure the limb is properly attached and be able to grasp the ride restraint. Certain hand, arm, leg, and joint elements may be required to ride safely. If you have any questions, please ask a ride attendant or visit Guest Services."
Universal was sued a few years back, because they wouldn't let two amputees ride the Mummy due to the fact hat they were not wearing prosthetic arms and couldn't grasp the ride restraint.
(
Edited to add: I found the resolution to the case! The court ruled Universal was within its rights to bar them from the ride:
http://entertainmentdesigner.com/ne...-coaster-will-this-affect-future-ride-design/)
Basically, it's highly unlikely Disney would allow someone with no legs (and no prosthetics) to ride any coaster unless it had over the shoulder restraints (like the Dragon Challenge used to have). Back in 2011 an Iraqi War veteran, and double amputee, died after being flung from a roller coaster in Syracuse, New York. He was the second person to meet misfortune on that coaster - the first being a 300+ pound man whose size prevented the lap bar from lowering to a locked position. Fortunately, he survived, and lap belts were installed afterward. Unfortunately, that wasn't enough to save the veteran.
Intense rides are designed for a particular body configuration. If you deviate significantly from that, you won't be safe on the ride.
After reading all this, all I can think is... can you
imagine trying to ride the Tower of Terror if you had no legs and weren't wearing really secure prosthetics???