Hock injury on 1 week old chick

[Chickenleg123]

I’ve tried to massage the tendon back into place but it doesn’t work. I don’t know if I’m not doing it right. A step by step instruction would be good. Also here is a pic. Please help. He hops around for food and water but he is struggling and I don’t want to cull him. You can’t really see it in the picture but if you look hard enough you can see the leg sticking behind it.

 

[azygous]

Gently pull the upper part of chick's leg a bit behind normal position and then carefully straighten the leg as though chick were stretching its leg back. The tendon should pop back into place pretty easily and cause little if any pain.