I would like some friends to join my profile to talk about what my future is going to be like, How fast does the necrosis act in destroying the joint? Does it spread to other joints? I have read about people who have it in five joints, could this happen to me. Pain Levels, how bad do they get? When is replacement surgery recommended? What are people taking? I've been put on Fosamax, but have heard conflicting reports about side effects. As you can see, I have lots of questions.