Study Of Anatomical Variation & Clinical Correlation Of Sacral Hiatus In Dry Human Sacra Of North Indian Population

Aim: The present study aims at contributing to the existing information related to sacral hiatus which has anatomical variations. Understanding of this variation may improve the reliability of caudal epidural anesthesia and analgesia. Material & Methods: The material of the present study consist the 40 dry undamaged human sacra of unknown sex. Which are obtained from the osteology collection held in the Department of Anatomy, Shri Guru Ram Rai Institute of Medical and Health Sciences Dehradun, Uttarakhand, India. Results: out of 40 undamaged human sacra, in the present study, we observe Inverted ‘V' shape was most frequent (55%) followed by inverted ‘U' shape (35%). The range of length of sacral hiatus varied between 11-30mm. The width at base of sacral hiatus varied from 11-15 mm. The depth of sacral hiatus at the level of apex varied between 4-6 mm. Conclusion: The detailed morphometric study of sacral hiatus is of great relevance, since this route is frequently utilized for caudal epidural anesthesia in perineal surgery and caudal analgesia for a painless delivery.