help! crooked legs on a chick

[zack4204]

One of my chicks legs are twisted at the knees. When it tries to stand it stands on the sides of its feet/ or on its knees. Its not splay leg but idk what it is. I have a video but can't figure out how to upload it from my phone.

 

[Eggcessive]

I would get the chick on poultry vitamins right away in case of a deficiency. There are many leg bone deformities in chicks, that can get worse with age. Varus/valgus disorder may be a possibility. If it is a deficiency, splinting the feet may help. Here are some links that may help (click on each page to enlarge picture in link #1):
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1790586/
https://sites.google.com/a/poultrypedia.com/poultrypedia/poultry-podiatry