Which position is best for demonstrating the radial head, radial neck, and radial tuberosity without superimposition?

The lateral oblique position of the elbow is optimal for demonstrating the radial head, radial neck, and radial tuberosity without superimposition. This positioning allows the radial structures to be visualized clearly because it rotates the radius and ulna away from each other, minimizing overlap.

In the lateral oblique position, the radial head is prominently displayed, and the alignment also provides clear imaging of the radial neck and tuberosity. This is crucial when evaluating fractures or assessing the anatomy of the elbow, as it ensures that these areas can be distinctly seen, aiding in accurate diagnosis and treatment.

Other positions, such as the medial oblique, would not provide the same clarity for the radial structures, as they would create superimposition of the radius and ulna. The neutral and flexed positions also do not achieve the necessary separation of the bones to visualize the radial anatomy effectively. Therefore, the lateral oblique position is the best choice for this specific radiographic requirement.