X-ray - Cervical Spine AP (Open Mouth)
X-ray Cervical Spine AP (Open Mouth) is an imaging test that captures a specialized front view of the upper cervical spine with the mouth open to visualize the atlas (C1) and axis (C2).
The X-ray – Cervical Spine AP (Open Mouth), also known as the odontoid view, is a specialized diagnostic imaging procedure used to examine the upper cervical spine, particularly the first two vertebrae—atlas (C1) and axis (C2).
During this test, the patient is asked to open their mouth while the X-ray is taken. This positioning allows clear visualization of the odontoid process (dens) and surrounding structures, which are otherwise obscured in standard views.
This test is especially useful in detecting fractures, dislocations, or alignment abnormalities in the upper cervical spine, often resulting from trauma or injury. It also helps assess conditions affecting the atlantoaxial joint.
The procedure is quick, non-invasive, and commonly performed alongside other cervical spine views for a comprehensive evaluation.
This test is recommended for individuals requiring detailed evaluation of the upper cervical spine.
It is advised in the following cases:
- Neck injury or trauma
- Suspected fractures of C1 or C2
- Persistent upper neck pain
- Limited neck movement
- Suspected atlantoaxial instability
- Follow-up evaluation after injury