Several investigations have tried to elucidate its aetiology, being structural changes in the tendon insertion at the inferior patellar pole the most studied finding. Although the overload at the pole ...

and/or the inferior patellar pole (Sinding-Larsen and Johansson disease). Osteochondrosis of the primary ossification center (Köhler's disease of the patella), however, is infrequently described ...

On examination, the tendon may be tender to palpation over its whole length. More usually it is localised to the lower pole of the patella. This tenderness is often worse when the knee is flexed, as ...

As the patellar tendon attaches from the inferior patellar pole to the tibial tuberosity, its biomechanical properties are similar to those of ligaments. It has been postulated from rabbit studies ...