What Is Femoral Torsion?

The femoral neck anteversion angle is the angle formed by the femoral neck axis and the frontal plane of the femoral condyle (that is, the coronal plane of the human body).

Rake angle

Femoral neck anteversion and twist angle are two different anatomical concepts. It has certain reference value in anthropology, diagnostics and treatment of upper femoral diseases. But at present domestic literatures and materials confuse the two. To this end, based on a large number of clinical observations, we elaborated the main differences between the two from the perspective of anatomy, geometry and clinical application for reference.

The anteversion angle of women is generally greater than that of men, so the incidence of congenital hip dislocation is 5-8 times higher in women than in men ^[2]

The angle formed by the upper body leaning forward and the ground during walking and running. A reasonable forward leaning angle can create favorable conditions for the movement of muscles and internal organs, improve the effect of backward kick, reduce the resistance generated during forward kick, and help the body's center of gravity move forward faster ^[11] .