in: Sports Injuries, Doral MN,Karlsson J, Editor, Springer-Verlag , Berlin, pp.598-602, 2012
Biomechanically the knee joint has motion
complex which includes gliding, rolling, translation, and rotation during their extension to
flexion. A significant incidence of knee pain
and disability arises from patellofemoral disorders in all ages. Patellar instability is a subjective term that defines pain, blockage, and
clinical twisting due to the deterioration of the
static and dynamic knee extensor mechanism.
An accurate diagnosis relies both on assessing
soft tissues and bony tissues together andconsidering pelvic and spinal stabilizers.
Under the title of patellar instability, arthroscopic medial plication technique and the
importance of the medial patellofemoral ligament in this approach will be discussed.