why is a adjectives side effect of polio, one leg shorter than the other?

The polio virus affects nerve call the sciatic nerve. This impudence innfervates the muscles of the hamstrings, leg and foot. So when this nerve is paralysed, adjectives the muscles it controls atrophy. This is because, for a muscle to not atrophy, it needs to receive tonic impulse from the nerve. If not, it will atrophy.
IT sometimes damages hip bones cause inflamation and shorteing of femur and hence THE LIMP
Polio causes paralysis and atrophy of muscles affecting our body or a part of the pack of our body to stop development or growth.