The Acromion Of The Scapula From A Lateral View

Description

Arcing laterally from the spine of the scapula, the acromion forms the superior roof of the glenohumeral region in a true lateral view. Its flattened undersurface overhangs the glenoid cavity, while the acromial angle marks the junction with the scapular spine posteriorly and the anterior margin curves toward the clavicular facet for the acromioclavicular joint. As the animation progresses, the orientation clarifies how the acromion sits superior to the humeral head and lateral to the scapular body, creating the bony boundary of the subacromial space. Key contours read cleanly in profile. Clinically, acromial morphology and tilt matter in subacromial impingement, where the supraspinatus tendon and subacromial (subdeltoid) bursa are compressed between the acromion and the greater tubercle during arm elevation. A lateral sequence makes that spatial constraint easier to teach than a single still, because you can appreciate how small changes in scapular rotation, acromial slope, or spur formation at the anteroinferior acromion can influence clearance under the coracoacromial arch. This is the bony landmark surgeons reference when localizing the anterolateral portal for shoulder arthroscopy and when discussing acromioplasty in refractory impingement. Use this animation in musculoskeletal anatomy blocks, orthopedic and sports medicine lectures, and radiology teaching files when correlating scapular landmarks with outlet (supraspinatus) view concepts and acromioclavicular joint pathology. It also fits surgical education on rotator cuff disease, emphasizing why lateral acromial contour is scrutinized in preoperative planning and intraoperative orientation. Anatomical accuracy verified by SciePro's Medical Advisory Board.