Figure 4

When the femoral calcar screw was located at different positions, with the clockwise change of point A, the trend of the area and circumference ratio of OT, IET, and MA-IIT in the ellipse.
When the femoral calcar screw was located at different positions, with the clockwise change of point A, the trend of the area and circumference ratio of OT, IET, and MA-IIT in the ellipse.