Surgery is very RISKY for RSD patients. I've needed elbow surgery for 8 or so years, and it just isn't worth the risk to me or my docs.

Will this 8th surgery improve your function to a degree worthy of potentially exacerbating your RSD?

I had a fourth wrist surgery, that was post RSD diagnosis, and a stellate ganglion block helped keep things from flaring and spreading for me. YMMV, that's why docs are much more conservative with invasive procedures to RSD patients.