Odontoid

Odontoid process (also known as the dens) is a tooth-like projection of the second cervical vertebra, also known as the axis. It is an important structure in the neck, as it allows for the rotation of the head.

Anatomy

The odontoid process is a bony protuberance that projects upward from the body of the axis. It is surrounded by a ligamentous ring, forming a pivot that allows the atlas and attached head to rotate on the axis, primarily producing the side-to-side motion of the head.

Clinical significance

The odontoid process can be fractured, which can lead to instability and potential injury to the spinal cord. This is a serious condition that requires immediate medical attention. The most common cause of odontoid fractures is trauma, such as a fall or a car accident.

Treatment

Treatment of odontoid fractures depends on the type of fracture, the patient's age and overall health, and other factors. Options may include a halo vest, a rigid collar, or surgery. The goal of treatment is to stabilize the spine and prevent injury to the spinal cord.

See also

• Cervical vertebrae
• Spinal cord injury
• Spinal fracture

References

Odontoid Resources
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