Study Of Carotico Clinoid Foramen In Dry Human Skull Of North Interior Karnataka

Abstract

Background & Objectives: The anterior, middle and the posterior clinoid processes are located in the middle cranial fossa of the skull. Variations in sellar region like the interclinoid bar (the ossification between the anterior and posterior clinoid processes); and the carotico clinoid foramen (the ossification between the anterior and middle clinoid processes) may cause difficulty for clinoidectomy procedures. Therefore, to obtain a satisfactory result from these surgeries, detailed anatomical knowledge of the region and the type of ossification between the clinoid processes is necessary. The present study is an effort to know more about carotico clinoid foramen in skulls of North Interior Karnataka region.

Methods: For the present study, dry unknown human skull were obtained from north interior Karnataka region collected in the department of Anatomy of BLDEU’s Shri B.M.Patil Medical College Hospital and Research centre Bijapur. The carotico clinoid foramen were studied in the dry human skull and were observed for various parameters like complete or incomplete, unilateral and bilateral and type of sellar bridges.

Results and interpretations: The data was analyzed statistically with chi square test. Carotico clinoid foramen was observed in 223 skulls and was found in 83(37.19%) skull bones. Amongst 223 skull bones, in 39 (17.47%) skulls the carotico clinoid foramen was forming a complete foramen; and in 44 (19.71%) skulls the carotico clinoid foramen was forming incomplete foramen.

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Complete bilateral carotico clinoid foramen was found in 23 skulls (10.31%) and complete unilateral was found in 16 skulls (7.16%). Incomplete bilateral carotico clinoid foramen was found in 7 skulls (3.13%). Incomplete unilateral carotico clinoid foramen was found in 37 skulls (16.58%) on right side -20 skulls (8.96%) and left side-17 skulls (7.62%) . The sellar bridging between anterior, middle and posterior clinoid processes was also studied. Conclusion: Detailed knowledge of carotico clinoid foramen will increase the success of the regional surgery