My RSD spread pretty quickly. It went from left knee/lower leg/foot up into the thigh and left hip within 2 months. Then by 6 months in it was in my whole right leg/foot and hip as well. 11 months in I had it in both arms and hands. Thankfully I've had no more spread and next month will be 4 years for me. When it was spreading I was kind of freaked out because it was so fast. If I've learned nothing else some people go fast, others slow and the luckiest ones have little or no spread for a long time.

Karen