A condition in which the femoral neck leans forward with respect to the rest of the femur, so that the femoral anteversion angle (the angle between the femoral neck and femoral condyles) is greater than normal. A normal child is born with 40° femoral anteversion. This gradually decreases to 10–15° at adolescence, and generally decreases further with growth. Abnormal femoral anteversion may lead to medial femoral rotation and squinting patellae (see femoral torsion) in adults. This increases the risk of overuse injuries in the lower leg.
Subjects: Sports and Exercise Medicine.