Johan Bellemans

Johan Bellemans is a Belgian physician who became known for the discovery of the anterolateral ligament. He discovered it along with Steven Claes in 2013, after a 134-year period of study for a missing part.

In 2002 he also discovered the reason for limited flexion that is frequently noted after knee replacement surgery, and the concept of posterior condylar offset was originated by him.

In 2014 he introduced the theory of constitutional alignment, which fundamentally changed modern thinking in knee surgery.

He also was influential in the development of the fourth generation artificial knees, and developed the bicruciate stabilised Journey Knee system.

Currently he works as a professor of orthopedic surgery in both Katholieke Universiteit Leuven and UZ Leuven.