Chick favoring her leg/foot

[MsTinaMarie]

This chick is 6 days old. Her feet were balled up she wasn't able to stand well at all, I splinted them and that helped. But her one leg appears to be stiff, and the foot is not flexible it seems. She isn't putting weight on her leg/foot and I am not sure why. I gently moved her leg in and out. her elbow/ knee seems a little larger on this leg. She doesn't have any visible injuries. I am including a few videos to see if any of you might see something I am missing. Thank you in advance. She is very sweet and my first silkie that has hatched that has survived from a rescue I took in. She will be a pet! I love her! Well, I tried to load a short video clip to show you what she is doing but it won't let me. So here are a couple of pix She stands with her foot back like that and doesn't put weight on it. The third pix she is holding it up in the air.

 

[Lemon-Drop]

How is she doing now?

 

[MsTinaMarie]

Her legs haven't gotten better. I have splinted the feet it corrected one, but not the other and her leg hasn't gotten better. I am not sure what to do. I love that baby but don't want it in pain. It doesn't seem to be I don't think but. Here is an updated video