Nah, still a fit issue. If you have a disability, make you bike fit and work with that is even more important. If your bike fit is so bad that your elbow hurts (not even something like your hips or knees or something that takes a lot of force), then you have to make it fit you and work with your limitations. You don't want to aggravate the problem. You already had to stop at one point because it hurt too much.
Now, you won't know this; but I say that as an amputee (below-the-knee).