When performing an external rotation oblique of the elbow, it’s critical that the shoulder, elbow, and wrist are all on the same plane. The elbow should be rotated externally about 45 degrees. While this can be challenging for some patients, this positioning provides the best view of the radial head, neck, and tuberosity free from superimposition, ensuring optimal diagnostic quality.
The medial rotation oblique is less commonly performed but is generally easier for patients. In this position, the arm is rotated medially so that the palm rests on the table. By palpating the upper condyles to ensure a 45-degree angle, this view best demonstrates the coronoid process free of superimposition.
