August 13, 2013 by Brett Norris
As the latter part of the name suggests, it is a ‘small rounded protuberance’ on the anterolateral (front, outer) aspect of the upper tibia (shin bone) where the ITB inserts. Its name is credited to French surgeon Pierre Nicolas Gerdy.
This illustration (left) provided by Kenhub highlights exactly where the Gerdy’s tubercle is found. The bone above the patella (knee cap) is the femur (thigh bone) and the bone below is the tibia (shin bone). The bone to the outside of the tibia is the fibula.
Just for reference this is the right leg shown.