I had one replacement 6 months ago and me knee still feels like it's on fire 24/7 and I'm in pain all day and night. Severe pain still burning is horrible it feels like a tight band like barbed wire is wrapped around it. It gets very hot and aches. Drs. Day they see nothing wrong with it. It's not in my head no one would want this. Never again will I do this on my other knee.