1. Norwegian Research Center for Active Rehabilitation, Department of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway
2. Department of Sport Medicine, Norwegian School of Sport Sciences, Oslo, Norway
3. Oslo and Akerhus University College of Applied Sciences, Institute of Physiotherapy, Oslo, Norway
4. Department of Radiology, Oslo University Hospital, Oslo, Norway
5. Department of Orthopedic Surgery, Aleris, Drammen, Norway
6. Department of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway
7. Oslo Sports Trauma Research Center, Norwegian School of Sport Sciences, Oslo, Norway
8. Institute of Anatomy, Paracelsus Medical University Salzburg and Nuremburg, Salzburg, Austria
9. Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway