Type of Article: Original Research
Year: 2016 | Volume 4 | Issue 2 | Page No. 2175-2178
Date of Publication: 30-04-2016
MORPHOMETRIC VARIATIONS IN SACRAL HIATUS IN TELENGANA REGION
A. Bharathi *1, V. Janaki 2, Veenatai. J 3.
*1 Associate Professor of Anatomy, Osmania Medical College, Hyderabad, Telengana, India.
2 Assistant Professor of Anatomy, Osmania Medical College, Hyderabad, Telengana, India.
3 Assistant Professor of Anatomy, Osmania Medical College, Hyderabad, Telengana, India.
Address: Dr A. Bharathi, Associate Professor of Anatomy, Osmania Medical College, Hyderabad, Telengana State, India. mobile no.: +919989110592
Introduction: The opening present at the caudal end of sacral canal is known as sacral hiatus. It is formed due to the failure of fusion of laminae of the fifth (occasionally 4th) sacral vertebra. It is located inferior to the 4th or 3rd fused sacral spines or lower end of median sacral crest.
Material and Methods: This study was carried out on 60 dry human sacra in Hyderabad region of Telengana state, India to know the anatomical variations of sacral hiatus.
Result: Various shapes of sacral hiatus were observed which included inverted- U (40%), inverted- V (45%), irregular (1.7%), dumbbell (1.7%) and bifid (1.7%). The apex of sacral hiatus was commonly found at the level of 4th sacral vertebra in 55%. the mean length of sacral hiatus was 30.8 mm. The mean anteroposterior diameter of sacral canal at the apex of sacral hiatus was 7.25 mm.
Conclusion: The knowledge of anatomical variations of sacral hiatus is significant while administration of caudal epidural anaesthesia and it may help to improve its success rate.
KEY WORDS: Sacral hiatus, Apex, Pelvic scral foramina, Caudal anaesthesia.
- Peter L William et al. Gray’s anatomy 38th edition. Churchill Livingston 2000;592-531 and 673-674.
- Edwards WB, Hingson RA. Continuous caudal anaesthesia in obstetrics. American journal of surgery 1942;57:459-464.
- Sekiguchi M, Yabuki S, Saton K, Kikuchi S. An anatomical study of the sacral hiatus: a basis for successful caudal epidural block. Clin. J. Pain. 2004;20(1):51-54.
- Trotter M, Lanier PF. Hiatus canalis sacralis in American whites and Negros. Human Biology 1945;17:368-381.
- Trotter M. Variations of the sacral canal; Their significance in the administration of caudal analgesia. Anesthesia and analgesia 1947;26(5):192-202.
- Vinod Kumar, Pandey SN, Bajpai RN, Jain PN, Longia GS. Morphometrical study of sacral hiatus. Journal of Anatomical Society of India 1992;41(1):7-13.
- Trotter M, Letterman GS. Variations of the female sacrum;Their significance in continuus caudal analgesia; Surg. Gynaecol. Obstet. 1944;78(4):419-424.
- Lanier VS, McKnight HE, Trotter M. Caudal analgesia: An experimental and anatomical study. America journal of Obstetrics and Gynaecology 1944;47(5);633-641.
A. Bharathi, V. Janaki, Veenatai. J. MORPHOMETRIC VARIATIONS IN SACRAL HIATUS IN TELENGANA REGION. Int J Anat Res 2016;4(2):2175-2178. DOI: 10.16965/ijar.2016.170