If the chicks are still in the nest, only more than ten days old, it can basically be solved by adding more nest material in the nest box to prevent the chicks from slipping on the excessively smooth nest bottom.
But if it is found about 30 days before the chicks should leave the nest, it can only be corrected by binding.
Before we know what obstacles there are, the splayed foot depends on how well it stands.
If he can still move freely, as long as the configuration in the cage is set up to facilitate him to eat and drink, there is basically no big problem.
But if your stomach is completely stuck to the ground and you can't move freely, it means that you have to take care of disabled children for life.