Can I ask, when you say "it hadn't made any progress 12 hours later", was it 12 hours after the first external pip? Was there any blood when you were helping? Here's some pics on what you need to do for this chick. You can cut a band aid in half lengthwise and put the cushion part in the middle and wrap the sticky parts around the legs or you can use vet tape if you have it. The vet tape is the best, especially with silkies because it won't rip their feathers when you take it off. If you use the band aid, just use baby oil when you take it off so it doesn't rip the feathers. That leg is pretty severe so you might have to take it off after a few days and replace it. And as it was already stated, the chicks can't be on newspaper, it will make it worse.
Eta: make sure to do it ASAP, the sooner the better. And then check to see how it looks after about 5 days. Make sure the chick can walk ok with the tape on and keep marbles in the water so the chick can't fall in and drown.Edited by RubyNala97 - 2/29/16 at 8:03am