The primary aim of this study is to evaluate whether an app-based care model is more beneficial for improving function in daily life than a web-based care model and standard care for patients with hip and / or knee osteoarthritis. The secondary aims are to evaluate how 1) patient-related outcome measures regarding the ability of the patient to forget about their problematic joint after treatment, quality of life, pain-related self-efficacy, and level of physical activity and 2) care consumption, cost-effectiveness, and carbon footprint differ between the three care models in a short-term (three months) and long-term perspective (one and three years respectively). Further aims are to evaluate how patient experience of the benefits provided by the two digital care models differs and how patient experience with respect to work alliance differs between the three care models. The primary hypothesis is that patients who are randomized to an app-based care model will improve significantly more in terms of function in daily life from baseline to one year compared with patients who are randomized to a web-based model and usual care. The secondary hypothesis is that patients randomized to the app-based care model change equivalently from baseline to one year in terms of patient-reported measures, but that the app-based care model is more cost-effective compared with the other two care models at one and three years, respectively.
The overall aim of this study is to compare three different care models for patients with hip- and knee osteoarthritis. The primary aim is to evaluate whether an app-based care model is more beneficial for improving function in daily life than a web-based care model and standard care for patients with hip and / or knee osteoarthritis