Morphological Study on Types of Asterion

Havaldar, Pavan P.; B.N, Shruthi; Saheb, Shaik Hussain; Henjarappa, K S

doi:10.16965/ijims.2015.127

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…Havaldar et al compared types of asterion between gender cathegories. Type 1 was 18.25% in males, 20.59% in females and 19.2% in total, Type II was 81.75% in males, 79.41% in females and 80.8% in total(14). Singh reported Type 1 prevalence 16.36% in the study performed on Indian dry skulls(15).…”

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confidence: 95%

Evaluation of Asterion Morphometry in Terms of Clinical Anatomy

Akkaşoğlu¹,

Farımaz²,

Aktaş³

et al. 2019

Eastern J Med

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Asterion is the junction of lambdoid, parietomastoid and occipitomastoid sutures and it corresponds to the location of the posterolateral fontanelle. It is close related to the location of junction of transverse and sigmoid sinuses. Mastoid process, posterior end of zygomatic arch, external occipital protuberance and lambda are bony features in close proximity of asterion. In the present study we measured the distance between asterion and each of aforementioned bony points. Twenty human dry skulls were included in this study. Distance between asterion and mastoid process was 43.65 ± 6.75 mm on the left side and 45.01± 6.04mm on the right side. Distance between asterion and posterior end of zygomatic arch was 43.97 ± 7.37 mm on the left side and 43.95± 7.02 mm on the right side. Distance between asterion and external occipital protuberance was 62.59 ± 8.83 mm on the left side and 54.75 ±5.57mm on the right side. Distance between asterion and lambda was 81.40 ± 7.36 mm on the left side and 82 ± 4.96 mm on the right side. In 84 % of the cases asterion was at the junction of transverse and sigmoid sinuses. In 12% of the cases asterion was below the junction of transverse and sigmoid sinuses. In 4 % of the cases asterion was above the junction of transverse and sigmoid sinuses. Asterion is the essential point to indicate safety zone for surgical approach and to determine sex and age. It is of great interest of anatomists, anthropologists, forensic experts, radiologists and neurosurgeons

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confidence: 95%

Evaluation of Asterion Morphometry in Terms of Clinical Anatomy

Akkaşoğlu¹,

Farımaz²,

Aktaş³

et al. 2019

Eastern J Med

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“…The incidence of asterion has been reported from various populations (Supplementary Digital Content, Table 5, http:// links.lww.com/SCS/C223). 1,3,4,[13][14][15][16][17][18][19][20][21] The frequency of type I asterion was more pronounced in Brazilian (31.67%), Indian (27%), and Mexicans (25.6%) 4,13,14 as compared to the rest population (Supplementary Digital Content, Table 4, http://links.lww.com/SCS/ C222). In the current study, the type I asterion occurred in 14.8% of the cases and found as approximately triangular and irregular sutural bone.…”

Section: Discussionmentioning

confidence: 99%

Morphometry of Asterion and its Proximity to Dural Venous Sinuses in Northwest Ethiopian Adult Skulls

Muche¹

2021

Journal of Craniofacial Surgery

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Introduction:The asterion is a craniometric point in the norma lateralis of skull situated at the confluence of parietal, temporal, and occipital bones. The aim of this study is to determine the type and mapping of asterion and its relation with transverse-sigmoid venous sinus junction (TSSJ). Materials and Methods: Sixty-one dry and intact adult human skulls of unknown sex and age were used. The measurements were implemented using stainless steel sliding vernier caliper. The data were analyzed using SPSS version-20 and independent t-test analysis was implemented. P < 0.05 was considered as statistically significant.Results: In the study, type II was found to be the predominant asterion type. There was statistically significant difference in measurements of central thickness of right and left sides of asterion (P ¼ 0.04, Eta squared ¼ 0.025). Besides, the TSSJ was situated above the asterion and at the level of asterion in 39.34% and 60.66 of the cases, respectively. Conclusions: The Northwest Ethiopian population has a high incidence of type II asterion. In most of the cases, the TSSJ is situated at the level of the asterion. The finding of the present study may be useful to neurosurgeons to reduce the risk during posterior cranial fossa surgeries. This work may also offer worthy information to radiologists, anthropologists, anatomists, and forensic scientists.

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Morphological Study on Types of Asterion

Cited by 2 publications

References 9 publications

Evaluation of Asterion Morphometry in Terms of Clinical Anatomy

Evaluation of Asterion Morphometry in Terms of Clinical Anatomy

Morphometry of Asterion and its Proximity to Dural Venous Sinuses in Northwest Ethiopian Adult Skulls

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