How would u know if u had Rsd in your back or if it was just muscle spasm from another injury... I had broken my patella on my left knee in 2005 and had 1 surgery with a bolt and screw and wires and the next was a bone graft in my patella because it wasn't healing.. Any how, now I have rsd in my right foot from a fracture but ever since braking my kneecap, my back pain has gotten extremly worse like 3 x worse where I hurt so bad I could throw UP??Thanks Lisa