Update- I put her outside in my fenced in part of the yard and let her visit with her brother. She is finally eating a LITTLE bit of grass.
She has stayed in the garage the past two nights and I will definitely keep her there again until she is better. She can put a tiny bit of weight on the hurt leg (but not much). I have been thinking about her injuries and I think that she might have gotten her foot stuck in the ice and hurt her leg pulling it out...or she slipped on the ice and pulled or broke something. The cuts are fine, but her leg is obviously still injured.