Study of Pterion And Incidence Of Epipteric Bones In Dry Human Skulls Of Gujarat
Study of Pterion And Incidence Of Epipteric Bones
Keywords:
skull, pterion, epipteric bone, sutureAbstract
Background: Pterion is present in floor of temporal fossa which is a meeting point of four bones, frontal and parietal bone superiorly and the greater wing of sphenoid and squamous temporal bone inferiorly. It is ‘H-shaped’ in most of the skulls. The most common variation is in its shape and presence of epipteric bone. Aim : To report the various types of pterion and incidence of epipteric bones in the human skulls and to compare with other racial groups from previous study. Methods: The present study was conducted using 311 dry, grossly normal human skulls from sources in Gujarat. Different types of pterion and the presence of epipteric bones were observed. Results: In the present study sphenoparietal variety of pterion was predominant and the incidence of epipteric bone was 11.73%. Conclusion: Knowledge of the presence of epipteric bones are important to prevent complications during burr hole surgery and to prevent misdiagnosis of fracture skull at the site of pterion.
References
2. Snell Richard S. Clinical Anatomy by Regions, 8th edi. Lippincott. Williams and Wilkins,2008; p.673, 686
3. Moore Keith L. Clinically Oriented Anatomy, 2nd ediWilliams and Wilkins, London. 1985; p. 796, 798, 800, 862, 909, 980.
4. Saxena R. C. Study of Pterion in skulls of Awadh area in and around Lucknow, Kathmandu University Medical Journal,2003 Vol-1, p.32, 33
5. Bilodi AKS, Gupta SS. Pterion formation and its variation in Indo Nepalese skulls’, Journal of
Nepalgunj Medical College, Vol-2,July 2002; p. 1-3
6. Agarwal A. K., Singh P. Pterion formation and its variations in the skulls of North India, Anthrop. Anz.1980; p. 38, 265-269
7. Manjunath K. Y., Thomas IM. Pterion variation and epipteric ossicles in south Indian Skulls, Journal of the Anatomical Society of India, Dec 1993, 42(2), p.85-94
8. Saxena SK, Jail SP. A comparative study of pterion formation and its variations in the skulls of Nigerians and Indians. Anthrop. Anz. 1988. Mar, 46(1), p.75-82
9. Oguz O, Sanli SG. The pterion in Turkish male skulls’ Surg Radiol Anat. 2004. Jun, 26(3), p.220-24.
10. Ersoy M., Evliyaoglu C. Epipteric bones in the pterion may be surgical pitfall. Minimally Invasive Neurosurgery 2003; Vol-46, p. 363-365.
11. Gopinathan K., Dhall U., Chhabra S. Sutural bones in the North Indian population, J. Anat. Soc. India. 1998; 47(2), p.91-96
