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1.
Article | IMSEAR | ID: sea-219760

Résumé

Background:Cervical vertebraeare the most crucially located and play a dynamic role in the mobility and protection of the vital parts of the central nervous system, they are prone to undergo degenerative diseases like spinal stenosis, cervical spondylosis etc.Hence it is important to know the exact dimensions of cervical vertebralbody and spinal canal in the diagnosis, prognosis and treatment of diseasesrelated tocervical spine and spinal cord.Material And Methods:Normal plain radiographs of cervical spine of two hundred adult subjects of known sex (one hundred males and one hundred females) and of known age group (between 18 to 50 years) studied for Antero-posterior diameter of vertebral body (AP-VB), Height of vertebral body (HT-VB)and Canal body ratio (CBR) in C3 to C7 cervical vertebrae. Data tabulated and analysed by using software statistical Package for Social Sciences(SPSS).Result:Higher mean AP –VB diameter andmean Ht -VB valuesare recorded in males as compared to females.Highermean Canal body ratio (CBR) was recorded in femalesascompared to males.Conclusion:Present study showed,higher mean value of(AP-VB),(HT-VB) in males as compared to females and found to be statistically significant indicating sexual dimorphism. Canal body ratio(CBR) showed slightly higher values in females as compared to malesand found statistically significant at C6 and C7 Levels.

2.
Article | IMSEAR | ID: sea-198280

Résumé

Background: The knowledge of the ossified ligaments in the base of the skull is of utmost important for anatomical,clinical and anthropological correlations. One such ligament extending from the lateral pterygoid plate to theunder surface of greater wing of sphenoid is named as Pterygoalar ligament and is named as Pterygoalar barafter its partial or complete ossification. This Pterygoalar bar is of great significance as it obscure the view offoramen ovale to approach it for anaesthetic , therapeutic purpose either suprazygomatic or infrazygomatic via.Also its enclosed foramen crotaphitico buccinatorius which is comparatively smaller than any other foramenmay compress the structures passing through it, probably the structures emerging out of foramen ovale may takeup a route via this foramen and get entrapped, which may lead to either neurovascular compression disorder.Objective: The aim of this study was to determine the prevalence of thickened bony bar, pterygoalar bony bridgesand to analyze morphometrically the homonyms foramen in a collection of contemporary skulls and discusstheir clinical implications.Materials and Methods: The present study was performed with 90 dried adult human skulls. Base of the skull wasexamined with naked eye, on both the sides for the presence of abnormal osseous structures from the lateralpterygoid plate.Results and Discussion: In the current study, we presented only one skull with unilateral complete pterygoalar barand 11 skulls with unilateral incomplete pterygoalar bar. The pterygoalar bar and pterygoalar foramen are rareclinical features but their presence may be of clinical importance in the event of trigeminal nerve injection oranaesthesia

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