CAMRT Radiography Practice Exam

What projections of the lumbar spine will demonstrate the intervertebral joint spaces?

1. AP only

2. Lateral only

3. Both AP and Lateral

4. Oblique only

The correct answer is: Both AP and Lateral

To effectively demonstrate the intervertebral joint spaces of the lumbar spine, both the anteroposterior (AP) and lateral projections are essential. The AP projection provides a broad view of the lumbar vertebrae aligning the intervertebral spaces parallel to the x-ray beam, enabling visualization of these spaces. It helps to identify any abnormalities such as disc herniation or narrowing of the spaces, which can be significant in assessing spinal conditions. The lateral projection is equally important as it offers a different perspective of the lumbar spine. This view displays the intervertebral disc spaces in profile, allowing for a precise assessment of the height and alignment of the discs. Viewing the lumbar spine laterally can reveal pathologies that may not be visible on the AP view, such as spondylolisthesis. Using both projections together enables comprehensive evaluation of the intervertebral joint spaces, facilitating better diagnostic accuracy and ensuring that healthcare professionals can assess the lumbar spine effectively in both dimensions. This combination aids in forming a complete clinical picture, crucial for treatment planning.