Study of Various Shapes of Sacral Hiatus in North Indian Population
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064

Research Paper | Anatomy and Histology | India | Volume 5 Issue 10, October 2016

Study of Various Shapes of Sacral Hiatus in North Indian Population

Shabnam Arora, Renu Dhingra, Vivek Singh Malik, Vipin Garsa, Sudha Chhabra

SUMMARY Variations around sacral hiatus directly affect the outcome of caudal epidural block. The study is done to know the extent and anatomical variations of sacral hiatus in North Indian Population. The present study was carried on 89 dry human sacra of unknown sex. Each sacrum was studied for composition, shape of hiatus, and level of the apex of hiatus, level of the base of hiatus, length of hiatus, Anterio-posterior diameter and Transverse diameter at base of hiatus. All the measurements were taken with the Vernier caliper. Composition of sacra were observed with most common being 5 segments (70.11 %), 4 segments (2.29 %), 6 segments (partial/complete sacralisation) (11.49 %), coccygeal ankylosis (16.09 %). Diverse shapes of sacral hiatus were noted with most common being Inverted V (29.21 %), Inverted U (22.47 %), Irregular (20.22 %), Elongated (16.85 %), Dumb-bell (6.74 %), Bifid and complete agenesis of dorsal wall (2.24 %). Apex was found to be commonly located at 4th sacral vertebra (55.05 %). Base of hiatus was commonly located at 5th sacral vertebra (81.6 %). The mean length of sacral hiatus was 23.299.27mm. Mean Anterio-posterior diameter of sacral hiatus was 4.97 1.37mm. Narrowing of sacral hiatus at apex with diameter less than 3mm was observed in 14.94 % cases. Mean transverse diameter of sacral hiatus was 15.902.38mm. Sacral hiatus forms the basis of caudal epidural block. Hence, it becomes imperative to study different populations to know their pattern of variations.

Keywords: Sacral hiatus, caudal epidural block, epidural space, sacrococcygeal ligament,

Edition: Volume 5 Issue 10, October 2016

Pages: 1328 - 1332

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Shabnam Arora, Renu Dhingra, Vivek Singh Malik, Vipin Garsa, Sudha Chhabra, "Study of Various Shapes of Sacral Hiatus in North Indian Population", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=23101605, Volume 5 Issue 10, October 2016, 1328 - 1332

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