Oh , so she either had multiple "crush syndromes" or was mis diagnosed for the ulnar & carpal..

Is she hyper mobile by any chance?
that can be an added factor in RSI's & TOS
http://www.hypermobility.org/beighton.php

If you/she decide on surgery , best to connect with the highest skilled surgeon that you can, even if you have to wait.

We did have a few from Canada posting years ago and they had surgery, you could use the search link and try - surgeon Canada or just Canada to see if those come up for you.
One was on the western side and one was mid area I believe.