Cause of patella infera
Inflammation of the anterior interval behind the patellar tendon may result in the tendon sticking down against the tibia, and the patella is pulled downwards. This process is called 'arthrofibrosis'.
The condition is also called patella baja.

Relevant links on KNEEguru
A-Z Keywords
Patella, Adhesions, Anterior interval arthrofibrosis, Infrapatellar contracture syndrome, Patellar mobilisations, Manipulation under anaesthesia, Anterior interval release
Contributions from experts -
- Dr Peter J Millett - 2006 - Infrapatellar contracture syndrome
- Dr Frank R Noyes - 2008 - Arthrofibrosis Course
- Dr Ronald Grelsamer - 2008 - Patellofemoral pain
Editor interpretations of peer-reviewed papers -
eBooks -