I don't the answer you seek.

But I can tell you this. I have RSD from my hips down. I have had 3 surgeries on one of my ankles in the past 1 - 1 1/2 years that was not due to RSD. I did not have a huge flare up as I expected to have one.

Maybe it was luck.

The surgeries had been on a body part with RSD, but the surgery was not for RSD.