1. Department of Orthopaedic Surgery, Kristiansund Hospital, Kristiansund, Norway
2. Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
3. Department of Orthopaedic Surgery, Clinic of Orthopaedics, Rheumatology and Dermatology, St. Olavs hospital HF, Trondheim, Norway
4. Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
5. Faculty of Health Sciences, OsloMet – Oslo Metropolitan University, Norway