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Fig. 3B —CT images reconstructed en face to glenoid fossae in 37-year-old man with recurrent unilateral dislocation. On dislocated side, there is anterior straight line to anterior glenoid rim (arrows). Glenoid width (solid line), measured at right angles to long axis of glenoid (dashed line), measures 24.7 mm. Glenoid bone loss is difference in glenoid width (3.7 mm) divided by normal width (28.4 mm) x 100 = 13% glenoid bone loss.