Overview

AP shoulder views in internal and external rotation assess the glenohumeral joint and proximal humerus. External rotation demonstrates the greater tuberosity while internal rotation profiles the lesser tuberosity. These complementary views aid in detecting fractures and dislocations.

Technique

Position the patient upright or supine with the detector centered to the shoulder. Obtain external rotation with the palm facing forward and internal rotation with the back of the hand on the hip. Use appropriate collimation to include the scapulohumeral joint.

Clinical Indications

AP shoulder views are indicated for trauma pain and suspected dislocation or fracture. They evaluate joint congruity and osseous integrity. Additional views such as Grashey or axillary may be required for detailed assessment.

Image Assessment

Assess humeral head position relative to the glenoid and inspect tuberosities for fracture. Evaluate joint space and acromioclavicular relationship. Correlate with clinical exam and consider CT for complex fractures.