A Systematic Review of the Effectiveness of Rehabilitation Therapy to Treat People with Chronic Knee Pain Following A Total Knee Replacement.

Abstract Background:Chronic knee pain after a total knee replacement has been estimated to affect 10 to 30% of patients and is related to dissatisfaction with surgery, reduced function and reduced quality of life. Rehabilitation is often prescribed in the subacute period post-operatively, but it may offer benefit to the increasing numbers of patients with chronic pain after their knee replacement. The aim of this systematic review is to evaluate the effectiveness of rehabilitation to improve pain, function and quality of life in people with chronic knee pain persisting for more than 3 months following a total knee replacement.Methods: The systematic review was conducted following PRISMA guidelines with a search of the online databases Ovid Medline, Embase via Ovid, CINAHL Plus, PsycINFO, Ovid Emcare and Proquest from their earliest date to July 12, 2020. The search criteria included English language randomised controlled trials of rehabilitation strategies in any setting to treat people with chronic knee pain, defined as knee pain persisting for more than 3 months, following a total knee replacement. Rehabilitation programs included exercise therapy, patient education, cognitive and mind-body strategies and self-management and excluded medication trials, procedural techniques and complementary therapies. Results:There were 254 abstracts screened for eligibility with 13 remaining for full-text screening. Following full-text screening, there were no studies that met the eligibility criteria for evaluating rehabilitation therapy to treat chronic knee pain persisting for more than 3 months following a total knee replacement.Conclusion:Despite the high volume of knee replacement surgery and the high incidence of moderate to severe chronic pain ensuing, there is currently no evidence available that rehabilitation commencing three months after surgery can effectively treat chronic pain and disability following a total knee replacement.