Type of Article:  Original Research

Volume 7; Issue 2.3 (June 2019)

Page No.: 6612-6615

DOI: https://dx.doi.org/10.16965/ijar.2019.172


M. Kapil Dev 1, V.R.Jayakumar *2.

1,*2 Assistant professor, Department of Anatomy, Coimbatore Medical College, Coimbatore, Tamil Nadu, India.

Address for correspondence: Dr. V.R.Jayakumar, MD, Assistant professor, Department of Anatomy,Coimbatore medical college,Coimbatore, Tamil Nadu, India. E-Mail: drjk.kimsanat@gmail.com


Background: The sciatic nerve arises within the pelvis from the sacral plexus, enters into the gluteal region through the greater sciatic notch and divides into two terminal branches at variable level in the posterior compartment of thigh. The variable level of division of sciatic nerve in the thigh leads to failure of sciatic nerve blockage. Considering this clinical problem, the present study has been undertaken with the object to measure the distance of division of sciatic nerve from the popliteal crease.

Materials and Methods: 32 embalmed formalin fixed cadavers were dissected in the gluteal region, back of thigh and popliteal fossa and the sciatic nerve were exposed and the distance of division of sciatic nerve were measured from the popliteal crease.

Results: Out of 32 cadavers dissected the sciatic nerve divides at a distance range of 5 cm–20 cm in male cadavers and 4 cm–11 cm in female cadavers. In 2 cadavers the sciatic nerve divides within the pelvis itself.

Conclusion: So, to achieve complete blockage of sciatic nerve in most of the patients the needle should be inserted about 14 cm (mean distance) above the popliteal crease in males and 8 cm (mean distance) above the popliteal crease in females.

Key words: Sciatic nerve, Popliteal crease, Tibial nerve, Common peroneal nerve.


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Cite this article: M. Kapil Dev, V.R.Jayakumar. A CADAVERIC STUDY ON DIVISION OF SCIATIC NERVE TO ACHIEVE ITS COMPLETE NERVE BLOCKAGE. Int J Anat Res 2019;7(2.3):6612-6615. DOI: 10.16965/ijar.2019.172