Fig. 2From: Accuracy of CT for measuring femoral neck anteversion in children with developmental dislocation of the hip verified using 3D printing technology3D-FNA. a CT-reconstruction image of the pelvis and the distal and proximal femur. b 3D-FNA: the lowest point of the greater trochanter and the medial and lateral femoral condyles are located on a horizontal line by rotating the image. The angle between this horizontal line and the femoral neck axis is the 3D-FNABack to article page