Now, keep in mind that stupid people can find lots of creative ways to harm themselves. If his saddle was 2 feet too low or 9 inches too high causing him to rotate the hip socket side to side as he pedaled, that *might* mess something up over time.
However, anyone claiming to have a "patient" should have at least enough of a basic education in physiology to know that cycling is not harmful to the hip and therefore... This is a stupid troll thread.