Physical Therapy Assistant Practice Exam

Adolescents are at increased risk for developing which knee condition?

1. Legg-Calve-Perthes disease

2. Congenital hip dysplasia

3. Patellofemoral syndrome

4. Osgood-Schlatter disease

The correct answer is: Patellofemoral syndrome

Patellofemoral syndrome is a condition that arises from issues with the kneecap (patella) and its interaction with the thigh bone (femur). Adolescents, particularly those who are active in sports or physical activities, often experience this syndrome due to growth spurts that increase the risk of biomechanical imbalances and repetitive stress on the knee. The factors contributing to patellofemoral syndrome in this age group include changes in muscle strength and flexibility, as well as differences in alignment of the lower extremities during growth. This condition is characterized by pain around the kneecap, particularly during activities like running, jumping, or climbing stairs, making adolescents especially susceptible due to their high levels of physical activity. In contrast, Legg-Calve-Perthes disease primarily affects younger children, congenital hip dysplasia is a condition typically diagnosed in infants, and Osgood-Schlatter disease, while related to growth spurts and physical activity, is more localized to the tibial tuberosity and tends to be seen in a different age demographic. Thus, patellofemoral syndrome is the most relevant knee condition for adolescents due to their lifestyle and developmental factors.