Knee replacements have been highly successful for more than 30 years. According to the US National Institutes of Health, 9 out of 10 patients who undergo the procedure report improved pain relief, knee function, and overall health-related quality of life.1 And because medicine is always developing new materials and procedures, the results continue to get better. The complication rate following total knee replacement is low. Serious complications, such as knee-joint infection, occur in approximately 2.0% of patients.2 Major medical complications, such as heart attack or stroke, occur even less frequently. (Of course, chronic illnesses may increase the potential for complications.)
Every surgical procedure has some risks and benefits. Your individual results will depend on your personal circumstances, and recovery takes time. While there can be no guarantee of success, benefits can include pain relief and return of normal use of the knee.
Each of the following reactions or complications can occur during and after surgery and may require medical attention (such as further surgery) and implant removal: