Knee Plica
Aetiology
Knee forms from 3 separate compartments
Plica represents normal embryonic synovial septum that persists into adult life
Epidemiology
20% of knees have medial patellar plica at arthroscopy
Symptomatic plicae much less common 1-2%
Mean age 14
Types
1. Infrapatellar (ligamentum mucosum)