2018
DOI: 10.5005/jp-journals-10057-0075
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Foramen Magnum: A Morphological and Morphometric Study in Dried Human Skull Bones of Rajasthan Population and its Surgical Importance

Abstract: Introduction:The foramen magnum (FM) is a large opening in the base of the skull. The dimensions of FM are clinically important because many vital structure passing through it, viz., the lower end of medulla oblongata, the vertebral arteries, and spinal accessory nerves. It may endure compression such as in cases of FM herniation, FM meningiomas, and FM achondroplasia. The knowledge of FM diameter is needed to determine some malformations such as the Arnold-Chiari syndrome, which shows expansion of the transve… Show more

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“…In the present study, pentagonal shape of foramen magnum was in 5.19% cases (18 out of 347 skulls). The finding of the present study is almost similar to the studies done by Ajay Ret al [26] (2015) in 5% cases; higher than the finding of Fathima F et al [31](2016) in 4%, Chethan P et al [5](2012) in 3.8%, Radhika PM et al [27](2014) in 2%, Sampada PK et al [ 12] (2017) in 1%, Pires LA et al [17](2016) in 1.29%, Aragão JA et al [19](2014) in 2.7%, Ilhan P et al [20](2017) in 2% and Sharma A et al [23] in 3.9% cases; lower than the finding of Radhikrishna SK et al [32](2012) in 14%, Sharma S et al [30](2015) in 8%, Devadas P et al [7](2017) in 12%, Revankar S et al [21] in 12.5% and Sharma DK et al [22] in 9.33% cases (Table 1 & 2).…”
Section: Discussionmentioning
confidence: 91%
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“…In the present study, pentagonal shape of foramen magnum was in 5.19% cases (18 out of 347 skulls). The finding of the present study is almost similar to the studies done by Ajay Ret al [26] (2015) in 5% cases; higher than the finding of Fathima F et al [31](2016) in 4%, Chethan P et al [5](2012) in 3.8%, Radhika PM et al [27](2014) in 2%, Sampada PK et al [ 12] (2017) in 1%, Pires LA et al [17](2016) in 1.29%, Aragão JA et al [19](2014) in 2.7%, Ilhan P et al [20](2017) in 2% and Sharma A et al [23] in 3.9% cases; lower than the finding of Radhikrishna SK et al [32](2012) in 14%, Sharma S et al [30](2015) in 8%, Devadas P et al [7](2017) in 12%, Revankar S et al [21] in 12.5% and Sharma DK et al [22] in 9.33% cases (Table 1 & 2).…”
Section: Discussionmentioning
confidence: 91%
“…In the present study, hexagonal shape of foramen magnum was in 9.22% cases (32 out of 347 skulls). The finding of the present study is almost similar to the studies done by Ganapathy A et al [28] (2014) in 9%, Riyaz ZH et al [13] (2015) in 8.19%, Sharma Set al [30](2015) in 8%, Ajay Ret al [26](2015) in 10%, Aragão JA et al [19](2014) in 9.1%, Revankar S et al [21] in 10% and Kumar A et al [16] (2015) in 8 % cases; lower than the finding of Krishna K et al [10](2016) in 11.8 %, Fathima F et al [31] (2016) in 21%, Veeramani R et al [15](2018) in 21%, Ilhan P et al [20] (2017) in 21%, Sharma DK et al [22] in 16% and Sharma A et al [23] in 45.1% cases; higher than the finding of Pires LA et al [17](2016) in 1.29% cases. (Table 1 & 2) These differences could be due to inter observer variation.…”
Section: Discussionmentioning
confidence: 98%
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