What is the purpose of Oblique views in the cervical spine?

What is the purpose of Oblique views in the cervical spine?

• A. Check to make sure IVFs are free of occlusion
• B. Evaluate posterior elements
• C. Assess intervertebral disc space
• D. Determine cervical curvature

Answer: (A)

Oblique views are chosen specifically to visualize the neural foramina in the cervical spine. Rotating the patient on an oblique projection opens up the foraminal spaces between the pedicles and helps separate overlapping structures, making it easier to detect foraminal narrowing, bony encroachment from osteophytes or uncovertebral joint changes, and other factors that could impinge the exiting nerve roots. This focus on foraminal patency is what makes the oblique view the preferred view for assessing the foramina. By contrast, disc space height and overall cervical curvature are best assessed on lateral views, and evaluation of posterior elements is not the primary goal of the oblique projection.

Oblique views are chosen specifically to visualize the neural foramina in the cervical spine. Rotating the patient on an oblique projection opens up the foraminal spaces between the pedicles and helps separate overlapping structures, making it easier to detect foraminal narrowing, bony encroachment from osteophytes or uncovertebral joint changes, and other factors that could impinge the exiting nerve roots. This focus on foraminal patency is what makes the oblique view the preferred view for assessing the foramina. By contrast, disc space height and overall cervical curvature are best assessed on lateral views, and evaluation of posterior elements is not the primary goal of the oblique projection.