Can A Deer With An Injured Leg Be Helped?

Debbie from North Carolina asks: “I have a deer with a non-functioning rear leg in my yard. He seems to hobble around very slowly, but is eating. Can he be
helped or do I just leave him be? The leg is not hanging and he can hold it up while hobbling around. Do you think it will heal? Also, do deer feel pain
like we do? I am an animal lover and it breaks my heart. Please advise.”