Remember that it's basically Square 1 again as she was in the hospital for so long.

Which means that any progress you made with behaviour, routines, and rules has gone out the window. Plus, she may even be angry and blame you for the fact that she was in the hospital (obviously you are NOT to blame, but she might link the fact that you were the adult at the time she went in the hospital as being the one to blame, she's too young to know any better than that).

What sorts of things has she done that got her into trouble 27 times? Perhaps the rules are too much for her, too many to comprehend at once?