What do you think of this story idea?

No offense, but there is no plot. If you focused the whole story on her getting injured, and then her climax is her recovery, then its good. But if that is the only bad thing that happens, then dont write it. And, teasing is not going to cut it for everyhting she has already been through. Focus on one thing or another. You have to undestand when to stop writing a story, otherwise it gets boring.