Journal article

Using discrete choice experiments as a decision aid in total knee arthroplasty: study protocol for a randomised controlled trial

Michelle M Dowsey, Anthony Scott, Elizabeth A Nelson, Jinhu Li, Vijaya Sundararajan, Mandana Nikpour, Peter FM Choong

TRIALS | BMC | Published : 2016


BACKGROUND: Osteoarthritis (OA) is a leading cause of disability in developed nations. Total knee arthroplasty (TKA) is a clinically effective treatment for people with end-stage knee OA, and represents one of the highest volume medical interventions globally. However, up to one in three patients remain dissatisfied following TKA. Research indicates that the strongest predictor of patient dissatisfaction following TKA is unmet expectations. This study will use a discrete choice experiment (DCE) provided to patients to improve knowledge of the expected outcomes of TKA. This increased knowledge is based on actual outcome data and is hypothesised to optimise patient expectations of TKA outcomes..

View full abstract


Awarded by National Health and Medical Research Grant Project

Funding Acknowledgements

This research is funded by a National Health and Medical Research Grant Project, Grant no. APP1058438 (,, phone: +61 2 6217 9000). The funding source had no role in the study design, and will not have any role during its conduct, collections, analyses and interpretation of data, or in the writing of reports and decision to submit for publication.