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Atlantooccipital instability. Case report.

H L Finney, T S Roberts

    Journal of Neurosurgery
    |April 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Neck hyperextension caused visual disturbances and unconsciousness in a patient with atlantooccipital instability. Occiput-to-C2 fusion successfully resolved these symptoms, highlighting a treatment for this condition.

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    Area of Science:

    • Neurology
    • Orthopedic Surgery
    • Radiology

    Background:

    • Atlantooccipital instability is a rare condition affecting the joint between the skull (occiput) and the first cervical vertebra (C1).
    • This instability can lead to significant neurological symptoms due to potential compromise of the brainstem and spinal cord.

    Observation:

    • A patient experienced neck pain, transient visual-field defects, and episodes of unconsciousness specifically upon neck hyperextension.
    • Radiographic evaluation, including flexion and extension views, confirmed significant atlantooccipital instability.

    Findings:

    • The patient's symptoms were directly correlated with neck hyperextension, indicating a dynamic instability.
    • Surgical intervention involving fusion of the occiput to the C2 vertebra was performed.

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    Implications:

    • Occiput-to-C2 fusion effectively stabilized the atlantooccipital joint in this case.
    • This surgical approach provided complete symptomatic relief, suggesting its efficacy for managing similar cases of symptomatic atlantooccipital instability.