What to do...deformed Tree frogs

[Ebony]

Ive taken in two more Southern bell Frogs (litoria raniformis) They morphed about a month ago. 3cm. They were in with allot of others and were getting bitten by the normally formed frogs. I knew they had to be separated. They seem to be getting around OK and manage to catch flies. Im prepared to look after them and feed them by hand but im wondering if its cruel. Looking at them it seems to be the thigh that looks too short so they can't fold in their legs. I just felt sooo sorry for them.