Every time they make an effort to beat this agony with soreness killers, kidney problems and ulcers are often the Uncomfortable side effects. In my opinion, you happen to be much better off replacing your knees than your kidney(s) or belly for instance. The surgeon will talk about this on https://www.theorthopaedicandpainpractice.com/unlocking-the-mystery-of-knee-replacement-surgery-everything-you-need-to-know/