MORPHOMETRIC AND MORPHOLOGICAL STUDY ON FORAMEN OVALE

2021 ◽  
pp. 21-22
Author(s):  
S. Saravana Baskar ◽  
S. Karthick

Background: Foramen ovalee is an important foramen of the middle cranial fossa. Foramen ovalee is situated in the greater wing of the sphenoid bone, posterior to the foramen rotundum and lateral to the lingula and posterior end of the carotid groove. Through the foramen ovale the mandibular nerve, accessory meningeal artery and lesser petrossal nerve are passing through it. The shape of foramen ovale is ovale in shape as compare to other foramina of the skull, its shape and size is quite variable. Meterials And Methods: A total 250 skulls were used for this study. The skulls were collected with I MBBS student from different medical colleges in south India. Skulls in poor conditions or skulls with partly damaged surroundings of the foramen ovalee were not considered. Maximum length and width of foramen ovalee was measured. Variation in right and left side and sex difference in length and width were calculated, the variations in shape also recorded. Results: The mean value of length of left foramen ovale is 8.5+1.32mm and right was 8.9+1.67mm. In female it was 8.7+1.67mmandmalewas 8.4+1.71mm. Themean value ofwidth of left foramen ovale is 3.7+1.03mmand right was 3.9+0.98mm. In female it was 3.8+0.92mm andmale was 3.7+1.02mm.The shape of foramen ovalewas ovale in 69% of skulls, almond in 29% of skulls and round was 2% of skulls. Conclusion: The present study conclude that there is signicant difference between sizes of right and left side foramen ovale and found that between male and female foramen ovale sizes also not shown any signicance difference. Foramen ovale has practical signicance to both neurosurgical and functional cranial neuroanatomy as it provides transcutaneous approaches to the skull base especially in cases of trigeminal neuralgia, as the Gasserion ganglion can be approached through it.

2019 ◽  
Vol 36 (01) ◽  
pp. 014-016
Author(s):  
Vidya Srikantaiah ◽  
Hemamalini Shetty

Introduction The greater wing of sphenoid presents various foramina, of which the foramen ovale is one important foramen through which advanced surgical therapeutic and diagnostic procedures related to the middle cranial fossa are performed. Materials and Methods A total of 40 dried adult skulls of unknown gender and age, obtained from the Department of Anatomy of the JSS medical College, Mysuru, Kamakata, India. The length and the width of the foramen ovale were measured using digital sliding calipers (tiny deal 150 mm SS digital caliper with LCD display, Kristeel-Shimwa industries, Bombay, India). Results The mean length of the foramen ovale was 0.745 ± 0.31 cm on the right side (RS), and 0.68 ± 0.15 cm on the left side (LS). The mean width was 0.6 ± 0.17 cm on the RS, and 0.56 ± 0.14 cm on the LS. Conclusion The knowledge of variations in the length and breadth of the foramen ovale is of immense importance in neurosurgery during various invasive surgical procedures, such as percutaneous trigeminal rhizotomy, and in the biopsy of cavernous sinus tumors and of Meckel cave lesions.


2020 ◽  
Vol 34 (5) ◽  
pp. 671-678
Author(s):  
Lifeng Li ◽  
Nyall R. London ◽  
Daniel M. Prevedello ◽  
Ricardo L. Carrau

Background The anterolateral triangle enclosed by the foramen rotundum and foramen ovale constitutes part of the floor of the middle cranial fossa (MCF). Objective To assess the feasibility of a transnasal prelacrimal approach for accessing the floor of MCF via an anterolateral triangle corridor and to determine the extent of maximal exposure while safeguarding neurovascular structures. Methods A transnasal prelacrimal approach was performed in 5 cadaveric specimens (10 sides). Following the identification of foramen rotundum and foramen ovale, the bony ridge between 2 was drilled to expose the MCF. The temporal lobe dura was then elevated laterally, and the distances from foramen ovale to the respective borders of the area of the MCF window were measured using a surgical navigation device. Results The MCF was exposed with a 0° scope in all specimens also exposing significant landmarks including the middle meningeal artery, greater superficial petrosal nerve, superior petrous sinus, and arcuate eminence. Average distances from foramen ovale to the anterior, posterior, and lateral exposed borders were 22.86 ± 1.87 mm, 27.24 ± 0.94 mm, and 24.23 ± 1.61 mm, respectively. The average area of exposed MCF window was 554.12 ± 60.22 mm2. Preservation of vidian nerve, greater palatine nerve, lateral nasal wall, and nasolacrimal duct was possible in all 10 sides. Conclusion It is feasible to access the floor of MCF via an endoscopic transnasal prelacrimal approach with seemingly low risk.


2021 ◽  
Vol 10 (01) ◽  
pp. 042-048
Author(s):  
Feroze Ganai ◽  
Humam Nisar Tanki ◽  
Afaq Sherwani ◽  
Kirmani Altaf ◽  
Nazish Chisti ◽  
...  

Abstract Intracranial meningiomas are the most common extra-axial tumors, representing 15% of all brain tumors. Arising from the arachnoid cells, and common in middle-aged women, 90% meningiomas are benign. We conducted a 10-year study on 183 cases of intracranial meningiomas and observed a lower and decreasing trend; the mean age was 43.3 years but there was also a significant incidence in young females. Parasagittal/falx (29%), sphenoid ridge, convexity meningiomas and middle cranial fossa locations were more common. Histopathologically, meningothelial meningioma was the most common. Benign (WHO I) tumors were found in above 90%, atypical (WHO II) in 5% cases, and malignant (WHO III) in < 4% patients. Most patients underwent Simpsons Grade I excision (35.6%) with dural reconstruction because of late presentations. Posterior fossa meningiomas were mostly benign, while intraventricular ones were mostly malignant with highest postoperation mortality. Mortality in operated patients was 9.8% but was highest in anterior fossa tumors (12.5%).


2021 ◽  
pp. 29-31
Author(s):  
Gyan Prakash Mishra ◽  
Ajay Singh Rajput ◽  
Stuti Tandon

INTRODUCTION: The foramen ovale is present in sphenoid bone which transmits the mandibular nerve, accessory meningeal artery, emissary vein and the lesser petrosal nerve. This study was conducted on a total 100 si MATERIALS & METHODS: des in 50 dry adult skulls. The shape of foramen will be determined by a visual examination. Margins of foramen were carefully observed for the abnormal bony outgrowths such as sharp bony projections (spine), small blunt bony projection (tubercle), bony plate and bony bar. We obs RESULTS: erved the variations in shape of foramen ovale. We found oval, almond, round, triangular, slit like and irregular shaped in 62%, 20%, 9%, 4%, 3% and 2% foramina ovale respectively. We also observed abnormal bony outgrowths in the foramen ovale like spines, tubercles, bony plate and bony bar. Abnormal bony bar was dividing the foramen ovale in 2 compartments (Anterior and Posterior). The preci CONCLUSIONS: se knowledge of variations of foramen ovale is of valuable contribution for neurosurgeons to development of new and different techniques to approach the middle cranial fossa. In our study we found , 100% tubercles and 80% spines were arising from anterior margin of foramen ovale. These ndings are important for neurosurgeons to approach middle cranial fossa via foramen ovale for neurosurgical and diagnostic procedures like percutaneous biopsy of cavernous sinus tumours, electroencephalographic analysis, microvascular decompression , percutaneous trigeminal rhizotomy and administration of anaesthesia to the mandibular nerve. Surgeons should avoid to go , close to the anterior margin of foramen ovale as spines and tubercles could interrupt the procedures.


2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Vipavadee Chaisuksunt ◽  
Lanaprai Kwathai ◽  
Kritsana Namonta ◽  
Thanaporn Rungruang ◽  
Wandee Apinhasmit ◽  
...  

All 377 dry skulls were examined for the occurrence and morphometry of the foramen of Vesalius (FV) both in the middle cranial fossa and at the extracranial view of the skull base. There were 25.9% and 10.9% of FV found at the extracranial view of the skull base and in the middle cranial fossa, respectively. Total patent FV were 16.1% (11.9% unilaterally and 4.2% bilaterally). Most FV were found in male and on the left side. Comparatively, FV at the extracranial view of the skull base had a larger maximum diameter. The distance between FV and the foramen ovale (FO) was as short as2.05±1.09 mm measured at the extracranial view of the skull base. In conclusion, although the existence of FV is inconstant, its occurrence could not be negligible. The proximity of FV to FO should remind neurosurgeons to be cautious when performing the surgical approach through FO.


2014 ◽  
Vol 128 (1) ◽  
pp. 60-63 ◽  
Author(s):  
S Genc ◽  
M G Genc ◽  
I B Arslan ◽  
A Selcuk

AbstractAim:This study aimed to determine whether or not the middle cranial fossa dural plate is located lower (i.e. more caudally) in patients with chronic otitis media, relative to adjacent structures.Methods:The authors retrospectively investigated computed tomography temporal bone scans of 267 ears of 206 patients who had undergone surgery with a diagnosis of chronic otitis media, together with scans of 222 ears of 111 patients without chronic otitis media. The depth of the middle cranial fossa dural plates was recorded.Results:The mean depth of the middle cranial fossa dural plate was 4.59 mm in the study group and 2.71 mm in the control group (p < 0.001). The middle cranial fossa dural plate was located lower in the right ear in both the study and control groups.Conclusion:The middle cranial fossa dural plate was located lower in patients with chronic otitis media, and in the right ears of both patients and controls. Surgeons should take this low location into consideration, and take extra care, during relevant surgery on patients with chronic otitis media.


2013 ◽  
Vol 84 (2) ◽  
pp. 246-253 ◽  
Author(s):  
Hui Theng Chong ◽  
Kim Wei Thea ◽  
Joseph Descallar ◽  
Yong Chen ◽  
Oyku Dalci ◽  
...  

ABSTRACT Objective: To compare the esthetic preference of White and Chinese judges with regard to Chinese lip position. Materials and Methods: The profile images of a dental and skeletal Class I Chinese adult male and female were digitally adjusted to Chinese mean values. The lip profile was adjusted with the upper and lower lip at the mean distance from the Ricketts' E-line. These images were used as baseline images and were further digitally manipulated to generate six additional images with the upper and lower lip such that they lay 0.5, 1.0, and 2.0 standard deviations (SDs) in front of or behind the E-line. An additional image was modified based on a White mean value. The images were viewed and ranked by 251 White and Chinese judges (dentists and laypersons) in Australia and China. Results: Significantly more Chinese judges ranked the retrusive profiles higher than the White judges. The White judges also ranked the profile image adjusted to −0.5 SD as the most esthetic for both the female and male, while the Chinese judges ranked the −1.0 SD profile as the most esthetic. Conclusions: The ethnicity of the judges is a significant factor influencing the perception of esthetic lip position. The Chinese judges prefer a more retrusive profile and are more likely to rate a protrusive profile as unacceptable, compared with the White judges.


Author(s):  
Timipa Richard Ogoun ◽  
Tobia P.S S ◽  
Aye T T

Human body parts are useful in the predictive study of the unknown. The aim of this study is to know the normative values of the canthi of the Ekowe people. Measurements such as inner and outer canthal distances were carried out. The mean value of the innercanthal distance for males and females are 3.55±0.58 and 3.43±0.52. The mean outer canthal distance for male and female is 13.91±0.84 and 13.62±0.76. The canthal index for male and female is 25.59±4.54 and 25.30±4.03. Sexual dimorphism exists and statistical significant difference was noticed in the outer canthal distance between the males and females (P˂0.05). This study has provided us with normative reference values of inner and outer canthal distances and canthal index for the Ekowe Population which is import to the health care givers, Anatomist, ophthalmic industry and anthropologist


2015 ◽  
Vol 10 (2) ◽  
pp. 78-80
Author(s):  
Lubna Shirin ◽  
Humaira Naushaba ◽  
Mohammad Shahjahan Kabir ◽  
SM Niazur Rahman ◽  
Tahmida Yasmin ◽  
...  

The knowledge regarding normal physical measurement of heart is very important for proper diagnosis and management of various cardiac diseases. Heart disease is a predominant cause of disability and death among all industrialized nations. This study is to establish a standard data of different external parameters of heart of adult Bangladeshi population. The study was conducted at Department of Anatomy, Sir Salimullah Medical College, Dhaka from July 2009 to December 2009. The formalin fixed cadaveric 60 (sixty) (n=60) human hearts, 41 (forty one) male and 19 (nineteen) female were taken. The length, breadth and weight of the heart were measured and the data was analyzed statistically. The mean value of the length of the heart in male was 10.35±0.62 cm and female was 10.22±0.90 cm. The mean value of the breadth of the heart was 7.45±0.73 cm and 7.35±0.65 cm in male and female respectively. The mean value of the weight of the heart was 174.15±15.49 gm in male, where as for female the mean was 171.58±19.16 gm. The comparison of values of above mentioned variables between male and female were done by unpaired students test and it was statistically not significant.University Heart Journal Vol. 10, No. 2, July 2014; 78-80


Author(s):  
Yadigar Kastamoni ◽  
Ahmet Dursun ◽  
Veysel Atilla Ayyıldız ◽  
Kenan Öztürk

Objectives: The structures passing through the foramen spinosum and its neurovascular relationships are of great importance for surgical approches directed to middle cranial fossa. The aim of the present study was to examine the number and location of the foramen spinosum (FS) in 3D-CT images. Methods: The study was retrospectively conducted on 3D-CT images of 177 adults. Firstly, the transverse section passing through the upper edge of the orbit, extending parallel to the Frankfurt plane was chosen. Then, the x and y-axes were determined on that transverse section. The coordinates, number, and location of the FS with respect to the foramen ovale (FO) were identified accordingly on x and y-axes. Results: While 1 FS was present in 90.96% of a total of 354 sides of 177 heads, there were 2 FS and 3 FS in 8.76% and 0.28% of the sides, respectively. The FS was located posterolaterally in 97.68%, posteriorly in 2.06%, and laterally in 0.26% with respect to the FO. In terms of FS coordinates, there was no statistically significant difference between gender and sides in the distance of the FS to the x-axis, but there was a statistically significant difference between gender and sides in the distance of the FS to the y-axis. Conclusion: Evaluation of the number of the FS and its location would help identifying and preserving neighbouring neurovascular structures during surgical interventions directed to the middle cranial fossa.


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