Americans have 640,000 knee replacement surgeries each year. This number has doubled since 2000. This is because more people with less severe osteoarthritis are getting new knees.1
But a new study reveals that the vast majority of patients see no real improvement in quality of life after having the surgery.
Researchers from the Icahn School of Medicine at Mount Sinai and Erasmus University Medical Center in Rotterdam, the Netherlands, followed 7,500 knee patients.