<unk>  is the most common cause of anterior knee<unk>  in the outpatient. Specific populations at high risk of primary<unk>  include runners, bicyclists, basketball players, young athletes and females. BMI did not significantly increase risk of developing<unk>  in adolescents. However, adults with<unk>  have higher BMI than those without. It is suggested that higher BMI is associated with limited physical activity in people with<unk>  as physical activity levels decrease as a result of<unk>  associated with the condition. However, no longitudinal studies are able to show that BMI can be a predictor of development or progression of the condition.
Patellofemoral pain syndrome
Chondromalacia patellae
Patellar subluxation syndrome
Patellar tendinitis
Greater trochanteric pain syndrome
Infrapatellar fat pad syndrome
Anterior compartment syndrome
Infrapatellar bursitis