IJAR.2018.280

Type of Article:  Case Report

Volume 6; Issue 3.2 (August 2018)

Page No.: 5554-5557

DOI: https://dx.doi.org/10.16965/ijar.2018.280

VARIANT FORMATION AND DISTRIBUTION OF MEDIAN NERVE

Deepa Devadas *, Jessie James, Ganesh Nathuramji Trivedi.

Andaman and Nicobar Islands Institute of Medical Sciences, Atlanta Point, Port Blair, Andaman & Nicobar Islands – 744104, India.

Corresponding Author: Dr. Deepa Devadas, Andaman and Nicobar Islands Institute of Medical Sciences, Atlanta Point, Port Blair, Andaman & Nicobar Islands – 744104, India. E-Mail: deepadevadas108@gmail.com

ABSTRACT:

During routine cadaveric dissection while teaching undergraduate medical students, the median nerve on the left upper limb of a 60 year old female cadaver showed presence of an accessory lateral root arising from lateral cord of brachial plexus.It also pierced brachialis muscle in the arm before reaching cubital fossa. Knowledge of these variations is helpful in evaluating nerve injury and preventing complications during anaesthetic and surgical procedures in the axilla.

Key words: Median nerve, variant, accessory root, Brachialis.

REFERENCES

  1. Samarawickrama M B.A study of anatomical variations of median nerve formation and its relation to the arteries in the axilla and arm. J. Morphol.2017; 35(2):698-704.
  2. Natsis K, Paraskevas G, Tzika M. Five roots pattern of median nerve formation. Acta Medica (Hradec Králové) 2016; 59(1):26–28.
  3. Hollishead WH.Textbook of Anatomy.3rd Edition. Calcutta: Oxford and IBH Publishing Co; 1979: 184–190.
  4. Raza K, Singh S, Rani N, Mishra R, Mehta K, Kaler S. Anomalous Innervation of the Median Nerve in the Arm in the Absence of the Musculocutaneous Nerve. Sultan Qaboos University Med J. 2017; 17(1): e106–108.
  5. Standring S. The median nerve. Gray’s Anatomy. 40th edition. Edinburgh: Churchill Livingstone; 2008:822-828
  6. Emamhadi M, Chabok SY, Samini F etal. Anatomical Variations of Brachial Plexus in Adult Cadavers; A Descriptive Study. Arch Bone Jt Surg. 2016; 4(3): 253-258.
  7. Budhiraja V, Rastogi R, Asthana AK. Variations in the formation of the median nerve and its clinical correlation. Folia Morphol.2012; 71(1): 28-30.
  8. Fazan VPS, Amadeu AS, Caleffi AL, Rodrigues Filho OA. Brachial Plexus Variations in its Formation and Main Branches. Acta Cir. Bras. 2003; 18(5): 14-18.
  9. Uzun A, Seelig LL Jr. A variation in the formation of the median Nerve; communicating branch between the musculocutaneous and median nerves in man. Folia Morphol (warsz). 2001; 60(2):99-101.
  10. [6].             Meshram SW, Khobragade KJ, Pandit SV, Jadhav JS. Four roots of median nerve and its surgical and clinical significance. Int J Anat Var (IJAV). 2012; 5: 110–112.
  11. Uzel AP, Bulla A, Steinmann G, LaurentJoye M, Caix P. Absence of the musculocutaneous nerve and its distribution from median nerve: About two cases and literature review.Morphologie.2011;95(311):146-150.
  12. Won SY, Cho YH, Choi YJ, Favero V. Intramuscular Innervation Patterns of the Brachialis Muscle. Clinical Anatomy.2015; 28:123–127.
  13. Schoenwolf GC, Bleyl SB, Brauer PR, Francis-West PH. Larsen’s Human Embryology.4th edition. London, UK: Churchill Livingstone; 2008. 311−312.
  14. Patil ST, Meshram MM, Kasote AP, Kamdi NY. Formation of median nerve from single root on left side and communicating branch from median nerve to musculocutaneous nerve on right side. Morphologie.2012;96: 51-54.

Cite this article: Deepa Devadas, Jessie James, Ganesh Nathuramji Trivedi. VARIANT FORMATION AND DISTRIBUTION OF MEDIAN NERVE. Int J Anat Res 2018;6(3.2):5554-5557. DOI: 10.16965/ijar.2018.280