Fig. 9From: Imaging methods for quantifying glenoid and Hill-Sachs bone loss in traumatic instability of the shoulder: a scoping reviewHumeral head depth:radius ratio (d/R). On a true AP x-ray with internal rotation, a circle template is fit to the contour of the articular surface of the humeral head and the depth of Hill-Sachs bone loss is measured. (Adapted from Sommaire et al. [46])Back to article page