Figure 4
From: THR Simulator – the software for generating radiographs of THR prosthesis
The simulated radiograph is printed in paper and is measured with the previously published method. We align the baseline of the protractor with the long axis of the ellipse, and then read the anteversion at the mid-point of the ellipse. Meanwhile we read the inclination at the horizontal line on the upper part of the protractor. In this case the anteversion is 9° and inclination is 45°.