Yes, a friend of mine had this problem with a 5 chicks She got a bunch of hatching eggs and apparently the parents had a vitamin B problem. The person who sold the eggs had a lot of problems with people complaining. The splinting worked on 3 but the other 2 just didn't work. So, no guarantees but it's attempting something.
All you need is "Vetrap" / "coban" / Self Adhesive wrap. It is roughly $ 2.50 per roll. and available at feed stores / pet store / drug stores.
Take small strips and wrap the toes like you would tape your toes if they where broken (I hope they are not) then like a figure 8 around toes to spread them. Be careful not to wrap them too close together or too tight. It's kinda like bumble foot wrapping but different because of the toes. I'll try to make a picture or something.
Also electrolytes don't hurt but the problem was most likely the parents.