Hopefully it has not healed yet. If you only recently have noticed her having trouble getting around, than most likely it is rather new. Which is best.
You'll have to gently pick her up and handle like grandma's fine china
Keeping her body up right like normal- See if you can move the leg around. Don't be to gentle where you are scared to move it at all. It's ok to move it, see if it will gently move around back into posit in of a normal leg. Just be aware of how your moving it. Don't push the leg forcefully into the bird incase of sharp pieces causing further injury. You can just pull the leg out gently to reposition it back to it's normal setting.
I'm probably making this sound more scary than it is. If so my apologies you'll do fine.
And If you can't because it's just loosly dangling, you will just have to keep her even more confined from moving much while she heals. Keeping her calm and quiet.
When setting her in her pen try to position the leg so it will heal correct in a laying position if possible.
If not you may just let her be for the day and try to reposition her tomorrow.
If the leg already is set, you may get a 2nd opinion on it in person by another poultry person.just to have them evaluate the bird and the leg movements.
If it's set and the leg mended wrong you'll just have one gimpy flock member. She should get by ok as she heals more so.
May required lower feeders and waters. But she should be fine.
