Cornelis Nicolaas "Niek" van Dijk is an orthopaedic surgeon, a specialist in sports traumatology and arthroscopic surgery of the ankle and knee.
Until 2016 Van Dijk was Full Professor in Orthopaedics and head of the Orthopaedic Department at the AMC-hospital in Amsterdam (Academic Medical Centre, University of Amsterdam).
He continues his career in the FIFA Medical Centres of excellence in Madrid and Porto.
He is the founder of a characteristic approach, which has come to be known as the Amsterdam Foot & Ankle School (aka The Amsterdam Approach):
Niek van Dijk has won renown as a leading authority for arthroscopic surgery of the ankle and the knee.
In particular, he is known for his Amsterdam Ankle School (the Amsterdam Approach), which places particular emphasis upon a painstaking diagnosis, followed by arthroscopy as a surgical resource rather than a mere diagnostic.
His operative techniques have spread throughout the world, and have benefitted leading athletes, as well as ordinary people suffering from ankle problems.