1. Department of Orthopaedic Surgery, Elisabeth-TweeSteden Hospital (ETZ), Tilburg, the Netherlands
2. Department of Orthopaedic Surgery, Bergman Clinics, Breda, the Netherlands
3. Department of Traumatology, Elisabeth-TweeSteden Hospital (ETZ), Tilburg, the Netherlands
4. Brabant Trauma Registry, Network Emergency Care Brabant, Tilburg, the Netherlands