Patellofemoral pain in the pediatric patient.

The pediatric extensor mechanism is subject to a variety of congenital, developmental, and traumatic disorders. Growth related factors modulate the development of patellofemoral pathomechanics. Injuries to periarticular soft tissues, apophyseal, epiphyseal, and articular cartilage are identified by meticulous history and physical examination. Diagnostic radiographs and MR imaging are invaluable adjuncts. Specific rehabilitative programs are very effective and lead to a high degree of clinical success.