1. Department of Orthopaedic Surgery, Amsterdam UMC, Amsterdam, the Netherlands
2. Erasmus MC University Medical Centre, Rotterdam, the Netherlands
3. Coronel Institute of Occupational Health, Academic Medical Center, Amsterdam, the Netherlands
4. Department of Orthopaedic Surgery, Onze Lieve Vrouwe Gasthuis (O.L.V.G.), Amsterdam, the Netherlands
5. Department of Radiology, Onze Lieve Vrouwe Gasthuis (O.L.V.G.), Amsterdam, the Netherlands
6. Department of Orthopaedic Surgery, Amphia Hospital, Breda, the Netherlands