One thing I learned about ceramic pots is that the roots can actually work their way into the pourous surface, even though its not hugely pourous. When this happens the roots will actually grab the sides and hold on tight, so the knife thing works for the sides, but not the bottom. Bottom line is, never use that ceramic pot again. Use thin, flexible pots. The ability to flex them helps to get them to detatch from the sides.

Lastly.. I think you'll be fine as long as you still have a good portion of roots left. There will be a longer period of shock, and your plant may look a little bit sickly for a little while, but don't panic and start trying to mess with it too much to correct the issue. One thing people forget is that TIME is the best cure for things like this. Just leave her be, and tone down the nute feedings, if you're feeding her at all. Again, some pics would be nice! even if they're simple, low quality cell phone pics or something. It gives us all a much better idea on what to tell you for help. Good luck and stick with it, she'll be fine.

Also how old is she now? And how many leaf sets (excluding the first single leaf set) does she have?