[Reconstruction of the medial patellofemoral ligament with quadricipital tendon autograft].

Introduction: Alterations of the patellofemoral joint are one of the most common causes of pain and inflammation as well as joint damage and instability of the knee. Patellofemoral instability is a common multifactorial entity, requiring realignment by proximal, distal, or a combination of techniques. Within the proximal procedures in soft tissues, is the medial patellofemoral ligament plasty (MPFL), which aims to realign the patella medially and restore the anatomy between the quadricipital tendon, patella and tubercle of the tibia.