Osteoarthritis (OA) is the most common disabling musculoskeletal disorder worldwide, and its prevalence is rising in the United States, England and Wales, and Oman. Knee replacement is a common surgical procedure but integrating the multidisciplinary rehabilitation team, preoperative pre-education program contribute to pain relief much more on the quality of life among patients. Evidence suggests that pre-operative treatment by a physiotherapist did not improve patient reported outcomes. The combination of pre-operative education and treatment by a physiotherapist may reduce the medical costs associated with surgery. On the contrary, a plethora of evidence may need to further yield confirmatory results.