Atlas invagination through the foramen magnum: expanding the spectrum of craniovertebral junction malformations
- 17.12.2022
- Case Report
Erschienen in:
- Verfasst von
- Alberto Benato
- Martina Offi
- Federico Bianchi
- Massimiliano Visocchi
- Gianpiero Tamburrini
- Erschienen in
- European Spine Journal | Ausgabe 7/2023
Abstract
Purpose
Malformations of the craniovertebral junction (CVJ) range from mild, asymptomatic conditions to severe forms of instability with basilar invagination. Rarely, there have been accounts of forms of so-called paramedian basilar invagination, with abnormal bone masses invading the lateral portion of the foramen magnum. All these entities have been comprehensively classified both from an anatomical and embryological standpoint.
Methods
Here, we report a case of a unique CVJ malformation which is not included in any existing classification framework and could represent a novel pathologic entity. We also provide an overview of the pertinent literature.
Results
The patient was a 14-year-old boy with a recent onset of spastic tetraparesis. Radiological studies documented a malformation of the atlas which invaginated through the foramen magnum, causing anterolateral medullary incarceration. Surgical treatment involved posterior decompression with resection of the abnormal bone and occipito-cervical fusion.
Conclusion
Our report enriches the panorama of CVJ malformations, showing how anatomical knowledge and embryological insights constitute the basis for the correct assessment and treatment of these complex entities.
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- Titel
- Atlas invagination through the foramen magnum: expanding the spectrum of craniovertebral junction malformations
- Verfasst von
-
Alberto Benato
Martina Offi
Federico Bianchi
Massimiliano Visocchi
Gianpiero Tamburrini
- Publikationsdatum
- 17.12.2022
- Verlag
- Springer Berlin Heidelberg
- Erschienen in
-
European Spine Journal / Ausgabe 7/2023
Print ISSN: 0940-6719
Elektronische ISSN: 1432-0932 - DOI
- https://doi.org/10.1007/s00586-022-07500-8
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