Medial Plica Shelf Plica Wheeless

Description: - most common form of plica;
- located over the medial femoral condyle;
- vulnerable to direct trauma when the knee is flexed;
- repeated trauma or irritation may lead to inflammation and fibrosis of the plica;
- fibrotic plica has decreased elasticity which causes it to impinge on either the patella or the femoral condyle;
Wheeless' Textbook of Orthopaedics