A trochlear groove which has formed abnormally, generally with the sides being too flat or too steep.


This video is a record of a meeting held by Dr Lars Blønd in order to bring together his patients who have all had the procedure of arthroscopic trochleoplasty.

Dr Lars Blond describes a technique of deepening the groove of the trochlea via the arthroscope, for patients with recurrent dislocation of the patella.

Patellar instability and dislocation

Discussing how the anatomy can affect the tendency to dislocate the patella.


An unstable patella needs careful evaluation, so that things are not made worse by inappropriate intervention. This eBook explains the logic of X-ray and other investigations.

advert for ebook