The screws are embedded in bone and will stay there foreever
The doctors know how to place the screws such that they do not
affect the nerves
Same as about. The physiological repairs are not an issue at all.
This will be up to him, and how mentally strong he is. If need
be, he can talk to a shrink
All in the hands of him and his physiotherapist. If they structure
the right program for him, you wont even know that he broke
his leg before.