Contributions to the literature
depression, pain, anxiety, KOA

This clinical trial will pioneer the use of peer coaches for TKR. Peer coaches will have a similar medical profile (age group, history of KOA and TKR) to patientsThis clinical trial will be the first home-based, telephone delivered pre- and post-operative program. The use of the internet and telephone simplifies the logistics of intervention delivery, facilitating wide scalability of the program.This clinical trial addresses patient pain catastrophizing, depression, and anxiety through CBT for the first time in a pre- and post-operative program for patients with knee OA undergoing TKR.