CAMRT Radiography Practice Exam

Which position is best for demonstrating the zygapophyseal joints of the cervical spine?

1. AP

2. Lateral

3. Oblique

4. Supine

The correct answer is: Lateral

To effectively demonstrate the zygapophyseal joints of the cervical spine, the lateral position is the most appropriate choice. In this position, the x-ray beam is oriented parallel to the zygapophyseal joints, allowing visualization of these joints without superimposition from the surrounding structures. This alignment provides a clear image of the joint spaces, which is crucial for diagnosing potential pathologies or injuries. In contrast, the other positions do not adequately showcase the zygapophyseal joints. The anteroposterior (AP) position primarily highlights the vertebral bodies and disc spaces rather than the articulating surfaces of the joints. The oblique position, while it can show the zygapophyseal joints, is often less effective for cervical vertebrae compared to the lateral view, as it may not provide the clearest depiction of the joint spaces. Lastly, the supine position does not offer specific advantages for visualizing the zygapophyseal joints in a way that assists with diagnosis, as it can obscure the necessary anatomical relationships. Thus, the lateral position is the best for visualizing the zygapophyseal joints of the cervical spine, ensuring clear delineation for assessment.