In an AP elbow radiograph the patient faces the detector with the arm fully extended and the forearm supinated (palm up). The humeral epicondyles should be parallel to the image receptor so the distal humerus and proximal radius/ulna are visualized without rotation. If full extension isn’t possible, obtain AP partial‑flexion views with separate proximal and distal exposures.

An elbow X-ray typically requires at least two views — anteroposterior (AP) and lateral — obtained about 90° to each other. In trauma or when a subtle fracture is suspected, a third oblique view is often added to improve detection of radial head, coronoid, or distal humerus injuries. Additional projections may be requested by the clinician.

An AP (anteroposterior) elbow X‑ray is taken with the arm extended or slightly flexed, forearm supinated and palm up while the beam is centered on the elbow to include distal humerus and proximal radius/ulna. A lateral view is taken with the elbow flexed 90°, forearm vertical and thumb pointing up (true lateral). Metal is removed, the limb immobilized, and the radiographer aligns the beam to capture bones and joint.

Position the patient seated or supine with the arm fully extended on the image receptor. Abduct the shoulder so humerus and forearm lie in the same plane. Supinate the hand so the elbow’s epicondyles are parallel to the receptor. Ensure no rotation, center the central ray perpendicular to the elbow joint (mid‑elbow), and include distal humerus and proximal forearm. If full extension is impossible, image as extended as tolerated.

AP (anteroposterior) X‑ray means the X‑ray beam travels from the patient’s front (anterior) to back (posterior). The X‑ray tube is positioned in front and the detector behind the patient. AP views are used when patients cannot stand (supine or seated) and may slightly magnify anterior structures, such as the heart, compared with PA views.

To check an elbow X-ray, review at least AP and lateral views (and oblique if needed). Assess bony alignment, joint spaces, cortical continuity, and epiphyseal/growth plates in children. Look for fractures, avulsions, dislocations, and anterior/posterior fat‑pad signs suggesting occult fracture. Examine soft tissues and compare with the opposite side or prior images, and report any angulation, step‑offs, or loose bodies.