It's hard to tell if her feet are just lame, or she is actually is suffering from splayed legs. To test that, gently kind of pull on one leg and see if she moves it all. A splayed leg bird will generally be able to move the legs some bit. The legs stretched out like that for an extended period of time can cause some bone/ligament damage, so you may consider making a hobble for her to correct the outward splay in her legs.
https://sites.google.com/a/poultrypedia.com/poultrypedia/poultry-podiatry
The link above has some good info. I would also try offering the bird a poultry vitamin a few times a day, by gently dripping one drop along the side of her bill, giving her plenty of time to get everything down. Offering tuna, or mashed scrambled eggs would be good too. Make sure she is kept in a warm, quiet area, and on bedding that provides plenty of traction.