1. Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
2. Centre for Deformity Correction and Joint Preserving Surgery, Kliniek ViaSana, Mill, The Netherlands
3. Department of Orthopedic Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
4. Department of Orthopedics, Maastricht University Medical Center, Maastricht, The Netherlands
5. Department of Orthopedics, HagaZiekenhuis, The Hague, The Netherlands