Patellar dislocation is an uncommon source of anterior knee pain, but it can cause significant morbidity in young, active patients who are particularly prone to recurrent instability. Most first-time dislocations are successfully treated with initial brace immobilization followed by rehabilitation. Surgical stabilization of recurrent instability has a high success rate and is usually required if nonoperative measures fail. By identifying the problem early and prescribing appropriate treatment, physicians may prevent further knee damage and minimize long-term sequelae.