Overview

The scapular Y view projects the scapula in a lateral orientation to evaluate humeral head position relative to the glenoid. It is useful for detecting anterior and posterior shoulder dislocations. The Y configuration is formed by the acromion coracoid and scapular body.

Technique

Position the patient in a true lateral with the affected shoulder centered and the arm in neutral. Align the detector to include the entire scapula and humeral head. Use breath hold to minimize motion artifact.

Clinical Indications

Scapular Y is indicated for trauma and suspected dislocation when axillary views are not possible. It helps determine direction of dislocation and associated fractures. Correlate with clinical exam and consider CT for complex injuries.

Image Assessment

Assess the relationship of the humeral head to the glenoid and acromion. Look for associated fractures of the scapula or proximal humerus. Document dislocation direction and recommend reduction or orthopedic consultation.