Editorial Commentary: Mental Health and Tobacco Use Influence Functional Outcomes—Quod erat demonstrandum, or Not?!?

Abstract Why does one patient achieve better results than another with nonoperative orthopaedic treatment? Aside from the specific underlying pathology of knee pain, there are demographic factors, including mental health, body mass index, tobacco use, and pain perception, that influence the clinical results and should be considered as part of the equation.