Overview
The AP elbow radiograph evaluates the distal humerus proximal radius and ulna. The patient extends the elbow with the palm up to obtain a true AP projection. This view is essential for detecting fractures and joint effusion.
Technique
Center the detector to the elbow joint and ensure the humeral epicondyles are parallel to the detector. Use appropriate exposure and immobilize the limb to reduce motion. Include the distal humerus and proximal forearm in the field.
Clinical Indications
AP elbow is indicated for trauma pain and limited range of motion. It helps detect supracondylar fractures radial head injuries and joint effusions. Additional lateral and oblique views complement the AP projection.
Image Assessment
Assess cortical continuity and joint alignment and look for fat pad signs indicating occult fracture. Evaluate the radial head neck and coronoid process for injury. Correlate with clinical findings and consider CT for complex fractures.