Did you get professional bike fits from well respected fitters? Not an accusation but as a biker something I care about. So far since I have been well fit with a bike I have seen no symptoms of anything bad, and my quality of life is through the roof.(run and swim too but tangential I suppose, though runners hear a lot about knees wearing out which has generally been proven false).<p>Or the other option is maybe your hip was doomed if you biked or not... not sure how to totally tease that out with out identical twins studies..