Fig. 5

Glenoid Index. The Glenoid Index is calculated from injured width/normal width. Chuang et al. use the parameters of the normal glenoid to normalize the pre-injury glenoid width accounting for any height difference between shoulders. They then compare the ratio of post-injury width to pre-injury width. Although demonstrated here using 2D CT, the description of the Glenoid Index by Chuang et al. involves 3DCT. (Adapted from Chuang et al. [68])