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Journal of Craniovertebral Junction and Spine
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Year : 2021  |  Volume : 12  |  Issue : 2  |  Page : 178-182

Morphometric analysis of posterior cranial fossa and surgical implications

1 Department of Neurosurgery, Galeão Air Force Hospital, Brazil
2 Department of Neurosurgery, San Fernando Hospital, Buenos Aires, Argentina
3 Department of Neurosurgery, University of San Pablo, Brazil
4 Department of Neurosurgery, Italian Hospital of Buenos Aires, Buenos Aires, Argentina

Correspondence Address:
Dan Zimelewicz Oberman
Galeao Road, 4101 - Galeao, Rio de Janeiro - RJ, 21941-353
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcvjs.jcvjs_205_2

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Background: Posterior cranial fossa (PCF) is an important area in terms of anatomy and surgery. It is a common site of many neoplastic, vascular, and degenerative lesions. Craniovertebral surgeries require special attention regarding detailed information about the morphology and morphometry of this region. The aim of this study was to analyze the morphometric characteristics of PCF and distances between the inner base of the skull. Materials and Methods: An observational, retrospective cross-sectional study was made. Fifty-five dry human skulls of unknown sex were measured ascertained using digital Vernier caliper with 0.01 mm precision. Results: The morphometric analysis of the mean length and width of the FM was 34.51 mm and 29.85 mm, respectively. We found a significant difference (P < 0.05) among the distance between the posterior tip of occipital condyle and basion of the right and left sides. Conclusion: According to our observations, the present study yielded detailed morphometry of the PCF and neurovascular relationship. It can facilitate successful instrumentation and minimize neurovascular injuries. Furthermore, it provides safe and suitable data for guiding neurosurgical procedures. The major limitation of this study was the lack of knowledge regarding the age and gender of the participants whose skull base was studied.

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