Morphometric Study on Foramen Magnum of Human Skulls
Morphometric Study on Foramen Magnum of Human Skulls
We utilized 100 human skulls to study the morphology and morphometric parameters of the foramen magnum in south Indian population. The anteroposterior diameter and transverse diameter of the foramen magnum were measured by using Vernier calliper to the nearest millimetre. All measurements were tabulated followed by student tâ test and descriptive statistics were done in SPSS version to know the pâ value for the significance. The mean anteroposterior diameter of foramen magnum in males was 3.71 mm and in females it was 3.38 mm. The mean transverse diameter of foramen magnum in males was 3.20 mm and in females it was 3.04 mm. The statistical analysis of morphometry of the foramen magnum in relation to sex determination values are significant (P-Value of Foramen magnum anteroposterior diameter was 0.0001 and transverse diameter was 0.015). Some literatures revealed that anteroposterior diameter of the foramen magnum alone considered for unknown sex determination. Our study reveals significant role of the foramen magnum dimensions in identification of the unknown sex.
___
- Ferreira FV, Rosenberg B, da Luz HP. The "Foramen Magnum" Index in Brazilians. Rev Fac Odontol Sao Paulo. 1967;5(4):297-302.
- Scheuer L, Black S. The juvenile skeleton. Elsevier, London, 2004;1-19.
- Gapert R, Black S, Last J. Sex determination from the foramen magnum: discriminant function analysis in an eighteenth and nineteenth century British sample. Int J Legal Med. 2009;123(1):25-33.
- Williams PL, Warwick R, Dyson M, Bannister LH. Gray's anatomy. 37th ed. New York: Churchill Livingstone, 1989;307.
- Radhakrishna SK , Shivarama CH , Ramakrishna A, Bhagya B. Morphometric analysis of foramen magnum for sex determination in south Indian population. Nitte University Journal of Health Science. 2012;2(1):20-2.
- Wescott DJ, Moore-Jansen PH. Metric variation in the human occipital bone: forensic anthropological applications. J Forensic Sci. 2001;46(5):1159-63.
- Teixeira WR. Sex identification utilizing the size of Foramen magnum. Am J Forensic Med Pathol. 1982;3(3):203-6.
- Günay Y, Altinkök M. The value of the size of foramen magnum in sex determination. J Clin Forensic Med. 2000;7(3):147-9.
- Murshed KA, Cicekcibasi AE, Tuncer I. Morphometric evaluation of the foramen magnum and variations in its shape; A study on CT images of Normal adults. Turk J Med Sci. 2003;33:301-6.
- Raghavendra Babu YP, Kanchan T, Attiku Y, Dixit PN, Kotian MS. Sex estimation from foramen magnum dimensions in an Indian population. J Forensic Leg Med. 2012;19(3):162-7.
- Catalina-Hercera CJ. Study of the Anatomical matrix values of the foramen magnum and its relationship with sex. Acta Anat (Basel). 1987;130(4):344-7.
- Krogman WM, İşcan MY. (1986) ‘ The Human Skeleton in Forensic Medicine, 2nd ed. Charles C Thomas, Springfield, IL 1986;189 – 200.
- Uysal S, Gokharman D, Kacar M, Tuncbilek I, Kosa U. Estimation of sex by 3D CT measurements of the foramen magnum. J Forensic Sci. 2005;50(6):1310-4. Gapert R, Black S, Last J. Sex determination from the foramen magnum: discriminant function analysis in an eighteenth and nineteenth century British sample. Int J Legal Med. 2009;123(1):25-33.
- Holland TD. Sex determination of fragmentary crania by analysis of the cranial base. Am J Phys Anthropol. 1986;70(2):203-8.