Carrie,

The PNS and SCS are both implantable devices for pain control. The PNS is a peripheral nerve stimulator and the SCS is a spinal cord stimulator. Lots of people with RSD go through the SCS trial and/or implantation, and you'll find it mentioned quite a lot.

There are lots and lots of abbreviations when it comes to stuff for RSD. It kind of takes some getting used to. Just keep asking questions!

-Betsy