Volume : VIII, Issue : VII, July - 2018

A NORTH INDIAN SKULL BASED STUDY OF A MORPHOLOGICAL AND MORPHOMETRICAL MEASUREMENTS OF FORAMEN MAGNUM.

T. Praveen, Pankaj Singh

Abstract :

Foramen magnum is a Latin word meaning largest aperture in skull. It is formed by the fusion of the four individual parts of the occipital bone (pars squama, left and right pars lateralis, and pars basilaris). The major structures passing through this foramen are the lower end of the medulla oblongata, meninges, verteal arteries and the spinal accessory nerve.Present study conducted in the Department of Anatomy, Saraswati medical college. Study conducted on completely ossified adults 92 dry skulls. Deformed and fractured skulls were excluded from the study.Anteroposterior diameters (Anteroposterior diameter of foramen magnum is the distance measured between Basion and opisthion.). Transverse diameters (Transverse diameter of foramen magnum is the distance measured at right angles to anteroposterior diameter of foramen magnum). Area of the foramen magnum–anteroposterior diameters / transverse diameter.In our study the mean anteroposterior diameter was 34.46 ± 2.42. The mean measurement of transverse diameter was 29.23 ± 2.1.The mean surface area of foramen magnumwas 789 ±91.01.When the index of foramen magnum was > 1.2, the foramen was considered to be ovoid.In the present study we found 63.05% skulls exhibited ovoid shape foramen magnum.The incidence of themorphological types of foramen magnum hadthe following frequency of distribution: Oval 56(60.87%),Round 4(4.35%), Egg 13(14.13%), Tetragonal 15(16.30%),Pentagonal 4(4.35%).The morphometry of foramen magnum is necessary for surgeon during the surgeries of foramen magnum meningiomas or posterior cranial fossa lesions and also in determining Arnold Chiari Syndrome.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

T. Praveen, Pankaj Singh, A NORTH INDIAN SKULL BASED STUDY OF A MORPHOLOGICAL AND MORPHOMETRICAL MEASUREMENTS OF FORAMEN MAGNUM., INDIAN JOURNAL OF APPLIED RESEARCH : Volume-8 | Issue-7 | July-2018

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