I have just dealt with this last 3 weeks. I had two chicks both fuzzy legged and I used the bandaids, (use the ones that don't stick to the skin, and make sure it only goes on the band aid, like double it over so it only touches itself. I even used two band aids when one chick got so active it keep kicking them off.
This week I have those two chicks in the cage with the other 30 and I can't tell them apart. I also gave them liquid vitamins for infants.Tri-Vi-Sol. I just added it to the water for all chicks.
I hope this works for you. I got all my info from this site. I even wrapped the chicks legs in the band aid and then wrapped them aroud in a washcloth, and propped them up.