1. SKA-Research Oy, Veikkola, Finland
2. The Pirkanmaa Hospital District, Tampere University Hospital, Tampere, Finland
3. Consultant in Trauma and Orthopaedic Surgery, Tampere, Finland
4. Consultant in Hand and Microsurgery, Tampere, Finland
5. Department of Orthopaedics and Traumatology, The Pirkanmaa Hospital District, Tampere University Hospital, Tampere, Finland