Sagittal coracoid-glenoid tubercule distance (CGD) was measured as the distance between the coracoid tip and the supraglenoid tubercule on the sagittal image. In cases where the coracoid tip and the supraglenoid tubercle were not in the same line, measurements were made using the sagittal projection of the coracoid tip at the level of the supraglenoid tubercle. The first line is drawn to bisect the glenoid on sagittal image. The most superior point of the glenoid crossed by the line bisecting the glenoid is marked as the supraglenoid tubercule. The length of the line connecting coracoid tip to the supraglenoid tubercule is the sagittal coracoid-glenoid tubercule distance.