1. Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M, Bispebjerg Hospital, and Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
2. Department of Orthopaedic Surgery, Hvidovre Hospital, Hvidovre, Denmark
3. Department of Orthopaedics, Køge Sygehus, Køge, Denmark
4. Department of Physiotherapy, School of Primary Health Care Faculty of Medicine, Nursing and Health Science, Monash University, Frankston, Victoria, Australia
5. CopenRehab, Institute of Social Medicine, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark