[spidey]

Hip displaysia is generally considered to be genetic - the incorrect shape of the hip joint is coded for in the genes. Management issues (slow growth, careful exercise etc) can delay the onset of symptoms and make the symptoms less severe, but a dog with HD was born with the genetic code for HD and management cannot change that. So no, you might have been able to make things a bit better for your girl if you'd managed her from day one, but you couldn't have prevented the HD.