HI Sarah
My Mom has RA. She's very deformed in her hands, feet, knees, wrists, elbows, ankles, hips and her spine is not fused but it is deformed, like a big S. She's had it about 25 years. She and her doctors should have been more aggressive with treatment. I don't know what went on in the doctors offices so I can't say for sure. But it is a devasting disease if not gone after aggressively. Like everyone on this board, it's different in every individual.
I wish her much luck and hope she has a good rheumy!
Jewelz