Broken leg? Need help

[yukonchickens1]

So my 3 day old silkie is hobbling. She was limping yesterday so I gave her a quick once over. No blood. Felt her leg, seemed fine. She's eating/drinking no pecking going on. Today I noticed her hobbling quite a lot. So I lifted her and checked her foot and leg. Her foot is sort of curled. She won't put any weight on it at all. and feeling up her leg her "knee" is a bit swollen and has this "thing on it. There's a hole.. Clearly.. And I'm not sure of it crusty? Skin? Is her leg broken?

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[yukonchickens1]

I'm worried about her. Her leg isn't broken I don't think. It's attarxhed to her body, feels no different than her other one. Other then this " thing" on the back of her " knee ". It's yellowy, crusty feeling, she peeps when it's touched... Could it be bone? It looks like there's a clear hole. There's no blood anywhere... But she clearly is curling her toes as if they're limp, and won't put weight on it. She gets around and is eating and drinking fine.