I think I understand your question correctly.
I know of several people who have RSD and have surgery or who have TOS and have surgery & don't want to get RSD.

In each instance, the answer was to have a preventative block * a SGB -

I know you want answers from people so I told you what they have told me.
If you DO want to read on it here are some good sites. Otherwise just ignore them. Or maybe they'll help someone else??

Here is a site that may be somewhat helpful, because it is exactly what those people told me.....one even had a big spinal surgery and RSD did not spread to that area.
http://www.rsds.org/5/news/2005/reuben.htm

There are so many more & so much is written on this subject.
Hope this helps some even though I have not personally had the experience.