Morphometric three-dimensional computed tomography anatomy of the hypoglossal canal

Bulsara, Ketan R.; Asaoka, Katsuyuki; Aliabadi, H.; Kanaly, Charles W.; Friedman, Allan H.; Fukushima, Takanori

doi:10.1007/s10143-008-0143-7

Cited by 22 publications

(11 citation statements)

References 9 publications

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“…(Table II). Pre-surgical evaluation has been supported by radiological CT images, which are used extensively in the recognition, evaluation and study of morphometric parameters related to the TA (Matsushima et al 2001;Day, 2004;Huynh-Le et al, 2004;Liu & Coudwell, 2005;Bulsara et al 2008;Menezes, 2008;Sen et al, 2010). Likewise, the evaluation and post-surgical follow-up need this resource.…”

Section: Computed Tomography Results Are Shown Inmentioning

confidence: 99%

Morphometric Analysis Related to the Transcondylar Approach in Dry Skulls and Computed Tomography

et al. 2012

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SUMMARY:The transcondylar approach (TA) has been used in surgeries to access lesions in areas close to the foramen magnum (FM) and is performed directly through the occipital condyle (OC) or through the atlanto-occipital joint and adjacent portions of the same. The objective of this study is to examine anatomical variations related to the TA by morphometric parameters of the FM, OC and of the hypoglossal canal (HC) in dry skulls and in computed tomography (CT). In 111 skulls, characteristics of the HC, and measures related to the FM, the HC and to the OC were examined. In CT, the measurements obtained bilaterally in 10 patients who underwent examination of the skull base in 1 mm-thick axial helical cuts were the distances from the outer half of the clivus to the opening of the HC; from the lower portion of the OC to the middle of HC; from the inner half of the clivus to the intracranial opening of the HC and to the midpoint of the HC; from the HC extracranial opening to the lower portion of the OC and to the outer half of the clivus. The results of CT measurements are consistent to previous studies of morphometric variations related to the TA, with no significant difference between the measurements obtained in the right and in the left sides, or related to gender. The data obtained by three-dimensional CT images are important in assessing the morphometric variations of pre-surgical patientsof TA.

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Section: Computed Tomography Results Are Shown Inmentioning

confidence: 99%

Morphometric Analysis Related to the Transcondylar Approach in Dry Skulls and Computed Tomography

et al. 2012

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“…Certain surgical approaches to optimize surgical exposure may result in injury of hypoglossal nerve, thus understanding its variations may be clinically important. A morphometric study of hypoglossal canal used three-dimensional computed tomography (3D-CT) for measurements (Bulsara et al 2008). In that study, the relationship of hypoglossal canal to occipital condyles and clivus was measured and significant intersubject variation was found; For example, the distance between the outer table of the clivus in the midline and the extracranial opening of the hypoglossal canal ranged between 15.7 and 24.7 mm.…”

Section: Discussionmentioning

confidence: 99%

Morphometric characteristics of caudal cranial nerves at petroclival region in fetuses

et al. 2015

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Morphometric measurements of cranial nerves in posterior cranial fossa of fetus cadavers were carried out in an attempt to identify any asymmetry in their openings into the cranium. Twenty-two fetus cadavers (8 females, 14 males) with gestational age ranging between 22 and 38 weeks (mean 30 weeks) were included in this study. The calvaria were removed, the brains were lifted, and the cranial nerves were identified. The distance of each cranial nerve opening to midline and the distances between different cranial nerve openings were measured on the left and right side and compared. The mean clivus length and width were 21.2 ± 4.4 and 13.2 ± 1.5 mm, respectively. The distance of the twelfth cranial nerve opening from midline was shorter on the right side when compared with the left side (6.6 ± 1.1 versus 7.1 ± 0.8 mm, p = 0.038). Openings of other cranial nerves did not show such asymmetry with regard to their distance from midline, and the distances between different cranial nerves were similar on the left and right side. Cranial nerves at petroclival region seem to show minimal asymmetry in fetuses.

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“…[1] The variations observed therefore may be regarded as part of a pathological process such as (tumors, aneurysms, congenital or acquired malformations and trauma) [2] and their surgical approach is technically demanding and therefore requires a good understanding of anatomy. [3] The hypoglossal canal is surrounded by cortical bone and therefore transmits hypoglossal nerve, meningeal branch of ascending pharyngeal artery and an emissary vein from the basilar plexus internally to internal jugular vein externally [4] and knowing the precise location of the hypoglossal canal is important in understanding the spatial relationships of surrounding structures and in the resection of tumors lying close to or within the canal itself. The study therefore was aimed at studying the hypoglossal canal length and width of dry adult human skulls among two southern states in Nigeria and also to create a data base which will be useful to anthropologists and clinicians for future researches.…”

Section: Introductionmentioning

confidence: 99%

Morphometric study of hypoglossal canal of occipital bone in dry skulls of two states in southern nigeria

Mamerhim

Godswill

2020

Bangladesh J Med Sci

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Background: It is observed that the morphologic and morphometric variability of the occipital bone structures may coexist in the same individual or among different subjects of the same or different populations and thus, a sound knowledge of the morphometry of this area can provide important benefits in determining safe surgical zones during surgical procedures. Aim: The present study was aimed at measuring the length (right and left) and width (right and left) of the hypoglossal canal among adult dry skulls of two states in southern Nigeria. Materials and Method: This study adopted the cross sectional study design. A total of eighty (80) hypoglossal canal; right and left were selected by simple random sampling and their length and width were measured with the aid of the digital vernier caliper. Results: The hypoglossal canal length on the right side was seen to be higher compared to the left length of the hypoglossal canal while the right hypoglossal canal width was seen to be higher compared to the left hypoglossal canal width and also observed differences between the right and left sides were statistically significant (P=0.01). Conclusion: There was a statistical significant difference with regard to hypoglossal canal length (right and left) and width (right and left) among the studied population. Bangladesh Journal of Medical Science Vol.19(4) 2020 p.670-672

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Morphometric three-dimensional computed tomography anatomy of the hypoglossal canal

Cited by 22 publications

References 9 publications

Morphometric Analysis Related to the Transcondylar Approach in Dry Skulls and Computed Tomography

Morphometric Analysis Related to the Transcondylar Approach in Dry Skulls and Computed Tomography

Morphometric characteristics of caudal cranial nerves at petroclival region in fetuses

Morphometric study of hypoglossal canal of occipital bone in dry skulls of two states in southern nigeria

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