I would bring it to each and every doctors attention till someone explaines it to you, physiotherapiststs everyone.. if there is another reason for the pain/movement disorder then it needs to be looked at. Also request new xrays, do whatever it takes.
Some times an underlying problem can cause RSD, and can in fact relieve the RSD symptoms when the underlaying problem is fixed. We have in fact had a few such lucky members here
However that said please don't get your hopes up too much as the let down hurts if they tell you theres no chance of repreive, I know.
Keep up the range of motion exercises, imobility is your enemy and will continue to stiffen it up. Always try move as normaly as possible and weight bear.
Good luck,
Sandra