1. Orthopaedic Department and Arthroscopic Center, Hatanpää Hospital, Tampere University
2. Sports Clinic and Hospital Mehiläinen, Tampere University
3. Division of Orthopaedics and Traumatology, Department of Trauma, Musculoskeletal Surgery and Rehabilitation, Tampere University Hospital, Tampere University
4. injury and Osteoporosis Research Center, UKK Institute, Tampere, Finland