“…Since then, it has proven to be an effective outcome questionnaire and is widely used (Dunbar et al 2000, Liow et al 2003, Padua et al 2003. Despite the positive psychometric properties for the Total Knee Arthroplasty (TKA) population, the 12-item knee questionnaire has only been translated into a few languages and subsequently validated in only two cases: Swedish and Italian (Dunbar et al 2000, Padua et al 2003.…”