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NJBMS - Volume 7, Issue 4, April - June 2017

Pages: 201-208
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Occurrence of Sutural Bones in Adult Human Skulls

Author: Shantharam V, Manjunath K.Y

Category: Anatomy

Abstract:

Background : The sutural bones (Wormian bones) are small irregularly shaped bones found along the cranial sutures. They are associated with insufficient rate of suture closure and regarded as epigenetic and hypostotic traits. Racial variability of occurrence of these bones is well established. Numerous studies have associated the presence of wormian bones and congenital diseases and attempted to explain the mechanisms by which they are formed.

Material and Methods: In the present study, one hundred and ten adult human skulls were examined for the presence of these bones.

Results: The sutural bones were found in 90 (81.89%) skulls.No sutural bones were found in 20(18.18%) skulls. Highest number of six sutural bones was noticed in two skulls only, followed by five numbers in four skulls. Only one sutural bone was seen in 26 skulls two in 31 skulls, three in 15 and four in twelve skulls.

Conclusions: It is important for neurosurgeons and radiologists to be aware of the presence sutural bone as they may be mistaken for fractures in cases of head injuries. Therefore, this research may be useful to the neurosurgeons, radiologist, and anthropologists.

Keywords: Sutural bones; Non-metric cranial traits; Skull; Wormian bones