Shoulder Girdle: Radiographic Anatomy - Video Lesson

Hey, everybody. Welcome to today's lesson on radiographic anatomy, demonstrated on routine projections of the shoulder. In a previous lesson, we discussed the anatomy of the shoulder and which radiographic projections are routinely performed. So let's tie that information to the radiographs themselves. As a reminder, the routine radiographic projections of the shoulder are AP external rotation and AP internal rotation. We will also be discussing AP neutral rotation and PA oblique scapular y. Take a look at this radiograph. What projection is being demonstrated? How do you know? If you said AP external rotation projection of the shoulder, you're correct. But how do we know it is an external versus internal or neutral rotation? We can tell this is an external rotation because the greater tubercle is visualized in full profile on the lateral aspect of the proximal humerus, and the lesser tubercle is superimposed over the humeral head. Let's identify the anatomy in this image.