**1. Introduction**

This chapter is divided into 2 major sections. Section 2 provides a brief overview of acute dislocation of the patella. In Section 3, we discuss the soft tissue and osseous anatomy, clinical presentation and physical examination, radiographic studies, nonoperative management, surgical treatment, and authors' preferred method of medial patellofemoral ligament (MPFL) reconstruction for patients with recurrent patellofemoral instability.
