Everyone�s pain tolerance is different, surgical techniques and skills vary from doctor to doctor and from hospital to hospital. Replacement materials can also vary, and how engaged patients are post-op has a lot to do with pain levels. That is all to say that some patients will say it�s excruciating and others will think the opposite. If you�re thinking about having it done, research your doctor, talk to his/her patients (he/she likely has a list of patients who don�t mind talking about their experience). If you�re already having significant pain, do your due diligence and go for it.