1. Department of Orthopaedic Surgery, Deventer Hospital, Deventer, The Netherlands
2. Musculoskeletal Research Unit, Bristol Medical School, Bristol, United Kingdom
3. National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and University of Bristol, United Kingdom of Great Britain and Northern Ireland
4. Department of Human Motion, Orthopaedics, Sports Medicine, Digital Methods (HOSD), Luxembourg Institute of Health, Luxembourg