How Bad Should My Knee Feel Before Getting Knee Replacement?
On A Scale Of 1 to 10: How Bad Should A Knee Feel Before Getting Knee Replacement. Each person's pain tolerance is different. It is hard to say when someone's pain level reaches a certain point (on a scale of 1 to 10) that TKR is necessary. You have to assess your own quality of life and your own ability to tolerate knee pain.