- Chair Department of Orthopedic surgery, Amsterdam University Medical Centers
- Vice-chair Division Surgery ,Amsterdam University Medical Centers
- Chair Academic Center of Evidence based Sports medicine (ACES), University of Amsterdam, The Netherlands
- Co-Chair Amsterdam International Olympic Committee Research Center
2006 – 2007 Orthopedic surgeon, Department of Orthopedic and Trauma Surgery, Kantonsspital Sankt Gallen, Switzerland.
2008 – ongoing Orthopedic surgeon, Department of Orthopedic Surgery, Academic Medical Center, University of Amsterdam, The Netherlands.
2016 – 2019 Chair Department of Orthopedic surgery, Academic Medical Center, University of Amsterdam, The Netherlands.
1984 – 1990 St.-Maartenscollege, Noormannensingel 13, Maastricht, Gymnasium β.
1990 – 1996 University of Amsterdam, Meibergdreef 9, Amsterdam, Medical Scientist, 30th August 1996.
1996 – 1997 University of Amsterdam, Extension Law & Health, I & II.
1999 University of Amsterdam, Medical Doctor, 22th December 1999.
2005 University of Amsterdam, PhD thesis ‘Acute lateral ankle ligament injury: new insights in diagnosis and treatment’, 21st January 2005.
2014 Professor of Orthopedic surgery and Sportstraumatology. University of Amsterdam, Amsterdam, The Netherlands, 1st January 2014.