Fig. 2From: Accuracy of image-free navigation in intraoperative leg length change from total hip arthroplasty using evaluations from 2D and 3D measurementsa Assessment of leg length discrepancy on the anteroposterior radiograph. Distance between the line connecting both tear drops and the medial apex of the lesser trochanter was measured. b Assessment of leg length discrepancy on the functional pelvic plane after repositioning using the 3D-Template system. Distance from the anterior superior iliac supine to the intercondylar fossa of femur was measuredBack to article page