Coronal plane measurements. Entry Point (EP) is the point where line A which bisects the basal coracoid line and extends perpendicular to it intersects the inferior margin of the scapular neck. The distance from this point to the infraglenoid tubercle was measured in millimeters. The screw trajectory was determined by angle 1 between line A and line B (the long axis of the scapular spine) and angle 2 between line A and line C (the lateral scapular border).