Fig. 3From: Accuracy of CT for measuring femoral neck anteversion in children with developmental dislocation of the hip verified using 3D printing technology3D PF-FNA. The lowest point of the greater trochanter on the 3D-PF model is located on the same horizontal plane as the medial and lateral condyles of the femur. The center of the femoral head and neck is positioned with a vernier caliper. The angle between these two points and the horizontal plane is measured by electronic angle instrument (called 3DPF-FNA)Back to article page