Poor girl....
But cats are tough.
She made it home, and she will pull through!!
Our Pinkie, my childhood cat, came home like that when I was 7 or 8, he badly hurt his hind legs and couldn't stand on them at all, but he healed very well. He tended to misjudge the strength of his hind paws after the accident, he never became quite as strong as before, but that was all.
She is in good hands, and she'll be fine, you will see.....