My 3-4 week old chick got attacked by a small dog

[Yardfarm]

My sister's dog broke in to the hen yard 3 days ago and got one of my chicks when I brought them out to see there future home and introduce them to Richard the rooster. She has an injured leg. It just dangles. She eats and drinks and until now has been with the other chicks. I separated her out because the other chicks were jumping on her.she has small nickel size abrasion that seems fine on her hip. I don't know what to do and while I was looking things up on google I came across (spraddle) and that's how she is acting she can stand on her good leg and the other one just dangles in front of her.

 

[Angileen]

Could be that or it could be broken, dislocated, or a pulled tendon. Wouldn't know what to do about any of these things.

 

[Yardfarm]

Yes. Could be

 

[SilkiesnFrizzle]

Yes, sounds broken or dislocated.