I hope she will be back to her "normal" self quickly. I'm interested in what your regular vet says about it. I can understand why the other vet may want to put her under if the positioning would be really painful. I wonder why they don't just give her some stronger pain meds to do it?
It's not your fault!!! So many little ones do something like this and hurt their legs. I am getting paranoid with my own.

We can do everything in our power to keep them safe, but accidents can and do still happen.
Keep us updated!!!