Welcome to International Journal of Anatomy and Research

Type of Article: Original Research

Year: 2015 | Volume 3 | Issue 4 | Page No. 1704-1709

Date of Publication: 31-12-2015

DOI: http://dx.doi.org/10.16965/ijar.2015.321

VARIABILITY OF ORIGIN OF OBTURATOR ARTERY AND ITS CLINICAL SIGNIFICANCE

Sakthivel *¹, Swathi Priyadarshini ².

^*1 Tutor, Department of Anatomy, B. K. L. Walawaker Rural Medical College, Ratnagiri, Maharastra, India.
² Tutor, Department of Anatomy, B. K. L. Walawaker Rural Medical College, Ratnagiri, Maharastra, India.

Address: Dr. Sakthivel, Tutor, Department of Anatomy, B. K. L. Walawaker Rural Medical College, Kasarwade, Sawarde, Chiplun (tk), Ratnagiri (dt) 415606, Maharastra, India.
E-Mail: dr.sakthivelmani1@gmail.com

Abstract

Background: Obturator artery is a branch of anterior division of internal iliac artery. It normally runs anteroinferiorly on the lateral wall of pelvis to the upper part of the obturator foramen and leaves the pelvis by passing through the obturator canal. On its course, the artery is accompanied by the obturator nerve and vein. It supplies the muscles of the medial compartment of the thigh. A severe and potentially lethal complication in pelvic injuries is arterial bleeding commonly involving the branches of the internal iliac artery, namely the lateral sacral, iliolumbar, obturator, vesical and inferior gluteal arteries. A sound knowledge of retro-pubic pelvic vascular anatomy is pivotal for successful performance of endoscopic procedures such as total extra-peritoneal inguinal hernioplasty or laparoscopic herniorraphy.
The context and purpose of the study: This study is an attempt to analyse the origin, course, distribution of obturator artery in pelvis and their clinical implication.
Result: out of 60 formalin fixed pelvic halves 36.6% of the specimens, (26.67% in males and 10% in females) the origin of obturator artery was found to be normal from anterior division of internal iliac artery. About 63.63% from various other sources.
Conclusion: This knowledge of variation in the origin of obturator artery is important while doing pelvic and groin surgeries requiring appropriate ligation. Such aberrant origins may be a significant source for persistent bleeding in the setting of acute trauma. Knowledge regarding the variations of obturator artery is useful during surgeries of fracture and direct or indirect inguinal, femoral and obturator hernias.
KEY WORDS: Internal Iliac Artery, Obturator Artery, Superior Gluteal Artery, Iliolumbar Artery, External Lilac Artery, Inferior Epigastric Artery.

References

1. Parson F G and Keith A. Sixth annual report of the committee of collective investigation of the anatomical society of Great Britain and Ireland, 1895-96.  J.Anat.Physiol. 1897;31:31-44.
2. Pick. The origin of the obturator artery - a study of 640 body-halves. American Journal of Anatomy, 1942;70:317-343.
3. Arey L B. The vascular system in Developmental Anatomy. WB Saunders Company. 1954;6:364-377.
4. Prabhu L V. Observations on the Variations in origins of the Principal Branches of the Internal Iliac Artery. Anat. Karnataka, 2001;1:1-10.
5. Chandler F A, Seidler F. IntrapelvicExtraperitoneal Resection of the Obturator Nerve. Surg. Gyn Obs. 1939;69:100-102.
6. Romanes GJ. cunningham’s manual of practical anatomy, 15th ed, united states, oxford university press. 2010;
7. Standring S: Gray’s Anatomy. The anatomical basis of clinical practice, 40th edition. New york: Elsevier Churchill Livingstone. 2008:1088.
8. Cunningham F G, Leveno K J, Bloom S L, Hauth J C, Gilstrap L C. 3RD, Wenstrom KD (eds): Williams Obstetrics, 22nd Ed. New York; McGraw–Hill Professional,2005:p. 7–8.
9. Bergman R A. Illustrated Encylopedia of human Anatomc Variation: Opus II: Cardiovascular system: Arteries: Pelvis. 2008.
10. Mangala M Pai. Variability in the origin of the Obturator artery. Clinics, 2009;64(9):897-901.
11. Sharmishta Biswas. Variation of origin of Obturator artery in eastern Indian population – A study. Journal of Anatomical Society of India, 2010;59(2):168-72.
12. Dinesh Kumar and Rath. Anomalous origin of Obturator artery from the internal iliac artery. International journal of Morphology, 2007;25(3):639-641.
13. Missankov A A. Variations of the pubic vascular anastomoses in black South Africans. ActaAnat (Basel), 1996;155:212-214.
14. Jakubowicz, Czernoawska-Grzesinska: Variability in origin and topography of the inferior epigastric and obturator arteries. Folia Morphol (Warsz), 1996;55:121-126.
15. Poynter, C.W.M. Congenital anomalies of the arteries and veins of the human body with bibliography. University Studies of the University of Nebraska, 1922;22:1-106.
16. Brathwaite J L. Variations in origin of the parietal branches of the Internal iliac artery. J.Anat. 1952;86:423-30.
17. Negura A. Anatomo-surgical study of hemorrhagic risks in urethro-vesical Burch-type suspension. Rev FrGynecolObstet, 1989;84:941–943.
18. Letournel E. Acetabulum fractures: classification and management. ClinOrthopRelat Res, 1980;151:81–106.

Sakthivel, Swathi Priyadarshini. VARIABILITY OF ORIGIN OF OBTURATOR ARTERY AND ITS CLINICAL SIGNIFICANCE. Int J Anat Res 2015;3(4):1704-1709. DOI: 10.16965/ijar.2015.321