Understanding CranioCervical Instability: Causes, Symptoms, and Management

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CranioCervical Instability

by Alike Medical Team ∙ Updated on June 13, 2023

Additional names

This group contains additional names: - CCI

General

CranioCervical Instability (CCI) is a condition where there is abnormal movement or instability between the skull and the cervical spine (neck). This condition can cause a variety of symptoms and can be challenging to diagnose. The cervical spine is made up of seven vertebrae that support the head and allow for neck movement. The skull sits on the first cervical vertebra called the atlas (C1) which is supported by ligaments that hold it in place. In CCI, these ligaments are weakened or damaged, causing instability and abnormal movement between the skull and the neck.

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Signs & symptoms

Symptoms of CCI can vary widely and may include: - Neck pain or stiffness - Headaches - Dizziness or vertigo - Nausea or vomiting - Tingling or numbness in the arms or hands - Weakness or loss of coordination - Difficulty swallowing or speaking - Tinnitus (ringing in the ears) - Sensitivity to light or sound

Diagnosis

CCI is challenging to diagnose because the symptoms can be nonspecific and overlap with other conditions. Diagnosis typically involves a combination of imaging studies and clinical evaluation. Imaging studies such as MRI, CT scan, or dynamic X-rays can be used to assess the stability of the skull and cervical spine. Clinical evaluation may involve specialized tests such as the neck flexion test or the cervical flexion-rotation test.

Treatment

The treatment of CCI depends on the severity of the condition and the individual's symptoms. Conservative treatments may include physical therapy to strengthen the neck muscles and improve posture, bracing to support the neck, or medication to manage symptoms such as pain or nausea. In more severe cases, surgery may be necessary to stabilize the skull and cervical spine.

Note

☝ We provide information on prescription and over-the-counter medicines, diagnosis, procedures and lab tests. This material is provided for educational purposes only and is not medical advice, diagnosis or treatment.

National Institutes of Health ∙ World Health Organization ∙ MedlinePluse ∙ Centers for Disease Control and Prevention

☝ All information has been reviewed by certified physicians from Alike

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