Patellofemoral syndrome: how to perform a basic knee evaluation.

PFS is one of the most common orthopedic problems. As long as overloading and malalignment of the knee is occurring, the patient will continue to experience pain. A proper understanding of anatomy and biomechanics of the knee is critical for an accurate diagnosis and treatment plan. As with most medical problems, a detailed history and physical examination help determine the proper treatment. Radiographs and CT can aid in diagnosis and treatment. NSAIDs, physical therapy, and HA therapy can prevent the need for surgical intervention in 80% to 90% of patients.