What will be the prognosis of nerve regeneration after a surgery in a 10-year-old?

Hello doctor,

I am looking forward to have advice about the outcome or prognosis of nerve regeneration and repair for my son. Before 13 days, my 10 years old son fell with a bottle in his right-hand palm and had his palm triangle open. As we were in another place, the local surgeon cleaned the injury, and I took him to another place where he undertook a surgery before 10 days of nerve repair of the proper ulnar digital nerve of the median nerve. I do not know if it is the exact term, but the nerve cut was the one at the root of the index, and that goes on the inner side (facing the 3rd). Would you please advice me about the outcome of this surgery? Is this nerve responsible for some functional disabilities of the Index? Is it only sensitive? Can he flex his index and use it usually afterward? No other tissues were cut, like tendon.

Thank you doctor,

The doctor told me that he joined the two ends of the nerve with suture using a microscope. He said that there is a little tension as he had to cut the nerve edges a little bit. He did not need to do graft as it was a clear cut. The day after the operation, the doctor did not recommend a splint and asked my son to pay attention and flex the hand excessively. He said that he wanted the palm injury to gain flexibility if the splint is not used. As for the finger, before the operation, my son could flex it, touch the thumb but did not and still do not feel the tip of it mainly on the inner part. He experienced numbness and tingling before the operation.