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Year : 2019  |  Volume : 8  |  Issue : 1  |  Page : 38-42

A morphological and morphometric study of foramen ovale in dry skulls of Indian population

Department of Anatomy, Sri Venkateshwaraa Medical College, Ariyur, Puducherry, India

Correspondence Address:
N Muthukumaravel
Department of Anatomy, Sri Venkateshwaraa Medical College Hospital and Research Center, Ariyur, Puducherry
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Source of Support: None, Conflict of Interest: None

DOI: 10.1055/s-0039-1688892

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Background and Aim The foramen ovale is a clinically significant foramen present in the skull base. The mandibular nerve is an important structure traversing this foramen and the trigeminal ganglion is also located just above the foramen ovale in the Meckel’s cave. These two structures are targeted by neurosurgeons and pain physicians in patients with trigeminal neuralgia. Clinical procedures for treating trigeminal neuralgia necessitate very precise knowledge about the foramen ovale. Hence, this study was designed to evaluate the morphology and morphometry of foramen ovale and its variations in dry skulls of India. Materials and Methods This study was conducted in 100 adult dry skulls of either sex. The foramen ovale was assessed for morphology and morphometry bilaterally using digital Vernier calipers. The summary data for all the measurements are presented in this study. The statistical analysis was performed using SPSS version 19. Results The most common shape of the foramen ovale was found to be oval. Oval-shaped foramen ovale was present in 72% (right side) and 68% (left side) of dry skulls that were examined. A mean length of 6.62 ± 1.11 mm (right side) and 6.72 ± 1.08 mm (left side) and width of 3.78 ± 0.89 mm (right side) and 3.89 ± 0.73 mm (left side) were observed. The distance between the foramen ovale and the zygomatic point was 35.65 ± 3.24 mm (right side) and 34.91 ± 2.58 mm (left side). The distance between the zygomatic point and the anterior margin of the external auditory meatus was 21.79 ± 3.25 mm (right side) and 18.62 ± 2.37 mm (left side). Conclusion An in-depth knowledge of the morphology and morphometry which include the different metric and nonmetric parameters and the variations in foramen ovale in dry skulls has been studied, which will be helpful to neurosurgeons and pain physicians to plan their clinical procedures which involve the base of skull.

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