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Femoroacetabular impingement (FAI) in the adolescent patient is becoming increasingly recognized. A number of morphologic variants can lead to abnormal abutment of the femoral neck against the acetabular rim. Unrecognized FAI can lead to the development of secondary hip disorders including osteoarthritis. FAI is both a clinical and radiographic diagnosis and requires a thorough and complete understanding to diagnose appropriately. A precise history and comprehensive physical examination is paramount. Radiographs and advanced imaging techniques help to confirm the diagnosis.

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