Neurological complications Secondary to Atlanto-occipital Assimilation: A Case Report

Harraz, Mohamed M.

doi:10.19080/oajnn.2017.04.555645

Cited by 1 publication

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“…Atlas assimilation is the term for congenital fusion of the Atlas with the base of the occipital bone [17]. Although atlanto-occipital assimilation (AOA) is often congenital, most of the cases do not show any symptom up to the second decade of their lives.…”

Section: Discussionmentioning

confidence: 99%

Short Segment Rigid Fixation for a Patient of Basilar Invagination and Assimilated C1 With Quadriparesis

Rahman¹,

Khairun

Khan

et al. 2020

Iran J Neurosurg

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Background & Importance: Atlas assimilation is the congenital Atlas fusion with the base of the occipital bone. Case Presentation: A patient was presented with neck pain, dysaesthesia and tingling of hands and feet and difficulty in walking for 4 years. On examinations, the patient had a short neck with rigidity in neck muscles and there were exaggerated jerks with bilateral Babinski sign. Cervical spinal x-ray indicated basilar invagination with the absence of a C1 arch and CT scan of the cervical spine showed assimilation of C1 with basilar invagination. Occipitocervical stabilization has been commonly proposed for the operational fusion. The iliac crest interposing bone graft was performed for fusion and stabilization of the occipitocervical region. The patient was treated surgically and soon after operation became painless and was able to move easily. Conclusion: In C1 assimilation with basilar invagination, bicortical occipital screws and C2 pedicle screws with interposition bone graft can be the way to optimize the shortest segmental stabilization and fusion procedure for occipitocervical fusion.

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Section: Discussionmentioning

confidence: 99%