International Journal of Anatomy and Research



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Type of Article: Original Research

Year: 2016 | Volume 4 | Issue 2 | Page No. 2493-2497

Date of Publication: 30-06-2016

DOI: http://dx.doi.org/10.16965/ijar.2016.251


STUDY OF SACRAL HIATUS IN DRY BONES

Ashok K. R *1, Kiran T. V 2, Rohini K. R 3.

*1 Assistant Professor, Department of Anatomy, BGS Global Institute of Medical Sciences, Bengaluru, Karnataka, India.

2 Associate Professor, Department of Anatomy, BGS Global Institute of Medical Sciences, Bengaluru, Karnataka, India.

3 Assistant Professor, Department of Anatomy, BGS Global Institute of Medical Sciences, Bengaluru, Karnataka, India.

Address: Dr. Ashok. K. R, Assistant Professor, Department of Anatomy, BGS Global Institute of Medical Sciences, Kengeri, Bengaluru, Karnataka 560060, India. Phone No: +919743006759
E-Mail: hingyake@gmail.com

ABSTRACT

Background: Sacral hiatus is used for giving caudal epidural anaesthesia. Detailed knowledge of the anatomy of the sacral hiatus and its variations is essential to prevent the failure of caudal epidural anaesthesia and also while performing procedures like transpedicular or lateral mass screw placement in the sacrum.
Materials and Methods: 110 dry human sacra was used for the study. The shape of sacral hiatus and location of the apex of the hiatus in relation to the level of sacral vertebra was noted.
Results: Sacral hiatus presented an inverted ‘U’ shape in 39.09%, inverted ‘V’ in 29.09%, dumbbell in 10%, bifid in 5.45%, irregularly shaped in 9.09%, elongated in 5.45% and in 1.81% total spina bifida occulta was observed.
Apex was located at the level of 4th sacral vertebra in 57.40%, at the level of 3rd sacral vertebra in 35.18% at 2nd sacral vertebra in 5.55% and at 5th sacral vertebra in 1.85%.
Conclusion: Variations in the anatomy of the sacral hiatus is one of the reason for the failure of caudal epidural block. Variations also pose a problem in transpedicular or lateral mass screw placement in the sacrum. Absence of the sacral hiatus, complete absence of the dorsal wall (total spina bifida occulta) should be kept in mind while performing any procedures in this region.
Key Words: Sacrum, Sacral Hiatus, Spina Bifida Occulta.

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Ashok K. R, Kiran T. V, Rohini K. R. STUDY OF SACRAL HIATUS IN DRY BONES. Int J Anat Res 2016;4(2):2493-2497. DOI: 10.16965/ijar.2016.251

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