What is the difference between femoral anteversion and Retroversion?

Because the lower part of the femur is connected to the knee, this also means that the knee is twisted outward relative to the hip. The opposite condition, in which the femur has an abnormal forward (inward) rotation, is called femoral anteversion. Femoral retroversion can occur in one or both legs.

What is the difference between anteversion and Antetorsion?

ANTEVERSION is an increase in the angle of the head and neck of the femur relative to the frontal plane of the body. This represents a normal femur abnormally positioned in the acetabulum. ANTETORSION is an increase in the angle of the head and neck of the femur relative to the femoral condyles as noted below.

When is femoral anteversion?

Doctors treat most children who have femoral anteversion with close observation over the course of several years. For most children, the twisting of the thigh bone usually corrects by itself with time. Most children achieve normal or near-normal walking patterns by the time they are 8 to 10 years old.

What is the opposite of femoral anteversion?

Femoral anteversion can occur in one or both legs. The opposite condition, in which rotation of the femur is backward (outward), is called femoral reteroversion.

What is femoral anteversion?

Femoral anteversion describes the inward rotation of the femur bone in the upper leg. Femoral anteversion occurs in up to 10 percent of children; 99 percent of cases resolve over time without the need for surgery. In many cases, the abnormal rotation of the femur develops while the fetus is growing in the womb.

How is femoral anteversion measured?

Femoral anteversion can be determined by measuring the angle formed between the long axis of the femoral neck and a line parallel to the dorsal aspect of the femoral condyles (posterior condylar axis, or PCA) on axial slices at MRI or CT.

What is a femoral anteversion?

How do you check for femoral anteversion?

Does femoral anteversion cause Valgum?

Often the appearance of knock-knee alignment in adolescents and younger children is due to increased femoral anteversion and external tibial torsion. However, if the patellae are positioned pointing directly forward, genu valgum may not be present. Genu valgum may appear worse clinically than radiographically.

Is femoral anteversion normal?

What is normal femoral anteversion?

Femoral anteversion averages between 30-40° at birth, and between 8-14° in adults 1, with males having a slightly less femoral anteversion than females 2.