Complete Dorsal Wall Agenesis in the Human Sacrum and its Importance in Caudal Epidural Anaesthesia
European Journal of Molecular & Clinical Medicine,
2022, Volume 9, Issue 6, Pages 747-754
AbstractBackground: The sacrum, an enormous triangular bone, is formed when the five sacral vertebrae fuse together. While the dorsal wall of the sacral canal is generated by the fusing of the laminae, spines, and ossified ligamentum flava, the ventral wall is created by the fusion of the sacral vertebra's body. Numerous variations can be found in the sacral canal's dorsal wall. It might be entirely open all the way down. By injecting medications into the spinal canal, caudal epidural anaesthesia provides both analgesia and anaesthesia. One of the contraindications of caudal epidural block is the full agenesis of the sacral dorsal wall.
Aim & Objective: The objectives of the present study were to document the dorsal wall agenesis of sacrum among the sacra which belong to the North Indian population and compare the findings with various races of the world.
Materials and methods: The present study has been carried out on 164 male & 112 Female (Total - 276 sacrum) undamaged dry sacrum after calculating the sacral indices and sexing of sacra.
Results: Sacrum with complete agenesis of dorsal wall are found in 3 among 276 sacrum (1.08%), in which 2 (0.72%) belongs to male & 1 (0.36%) belongs to female. So, compared to females, males are more likely to have a complete agenesis of the dorsal wall of the sacrum.
Conclusion: It's a rare variation, and therefore knowledge about it may be beneficial for anthropologists, radiologists, orthopaedicians surgeons, and neurosurgeons, as well as anaesthetics during caudal epidural anaesthesia. Understanding these variances could increase the success rate of the caudal epidural block.
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