Last night, Twiggy and Billy were playing and she gave a yelp and was scooting around not using her back legs at all. I was terrified she hurt herself more. After a few minutes, she was walking and running around just fine. But I still put her in her crate the rest of the night. Today. she was running full out around the backyard using all four legs!. Her hip is not ar high up as it was, it's like it moved more in place? Whatever happened, I'm am so happy and optimistic that she may be getting even more mobility in that bad leg. I so hope it doesn't move back out again.