Thanks for reposing your faith in us. Your problem is of common occurrence the world over.
Since you are able to walk normally with no pain, the chances of injury
to Sciatic nerve
are remote. It is possible that a small branch/ nerve may have been accidentally injured. However, over a period of time, the sensations in the affected parts will be restored completely.
You are welcome to revert back in case of further clarifications, if any.
Have a nice day