It sounds to me like you might be in for another session in the operating room. I'm not CERTAIN on this, but it's possible.
I cannot say what procedure they'd be doing as I'm not "up" on this, darn it, but it seems like they're going to HAVE to make room for those nerves to get thru the foramen and room at the cord. Trouble is, I don't know how they do that. I'm going to have to research that.
Maybe Dubious knows how they do that. You might want to send him a message and ask him about this. He knows ALOT about this. Send him a PRIVATE message so he'll get it.
Best of luck and God bless. Let us know what happens will you. I want to know for further reference! Hugs, Lee