A Posterior View Of The Humerus's Surgical Neck

Description

Framed in a posterior view of the proximal humerus, the animation centers on the surgical neck, the circumferential narrowing just inferior to the greater and lesser tubercles and lateral to the humeral head. As the camera settles behind the bone, the greater tubercle occupies the superolateral contour, while the posterior aspect of the anatomical neck and head sit more medially and superiorly. Subtle rotation clarifies how the surgical neck transitions into the shaft distal to the tubercles, and how this constriction reads differently as the posterior surface rolls into the lateral border. Orientation stays true to anatomical position. Clinically, the surgical neck is a common fracture site in falls onto an outstretched hand, and its relationship to the quadrangular space matters when evaluating deltoid weakness and lateral shoulder numbness from axillary nerve injury. The posterior vantage point suits teaching because it tracks the region where the nerve and posterior circumflex humeral artery course around the proximal humerus, a relationship that is easy to lose in anterior-only depictions. Motion helps. By showing the bony landmarks in sequence, the animation supports clear localization of fracture lines relative to the tubercles and proximal shaft, which informs both physical exam correlation and surgical planning for fixation. Use this animation in upper limb osteology labs, orthopedic teaching on proximal humerus fractures, and radiology primers that correlate AP and scapular Y views with three-dimensional anatomy. It also reads well in patient-facing content describing surgical neck fractures and expected sensory changes over the regimental badge area. Anatomical accuracy verified by SciePro's Medical Advisory Board.