The concept of physical limitations in knee osteoarthritis – the view of patients and health professionals

Method Concept Mapping, a structured group process, was used to identify and organize components of the ‘physical limitation’ concept. Statements were generated through workshops with patients and through e-mail and an international web-based survey with health professionals. Ideas were elicited through a nominal group technique and organized using multidimensional scaling, hierarchical cluster analysis, participant validation, rating of clinical importance, and thematic analyses, to generate a conceptual model of physical limitations in knee OA.