Variant Formation of Median Nerve In North Indian Population: A Cadaveric Study

Chaudhary S; Ray S.; Ashoka R. K.; Mishra A. B.; Parasher V.; Jagdish P.

Volume : VIII, Issue : XI, November - 2019

Variant Formation of Median Nerve In North Indian Population: A Cadaveric Study

Chaudhary S, Ray S. , Ashoka R. K. , Mishra A. B. , Parasher V. , Jagdish P.

Abstract :

Twenty upper limbs were studied. We encountered variation of formation of median nerve by four where two extra roots were arising from lateral cord of achial plexus and third root came from musculocutaneous nerve roots and In another cadaver, variant median nerve formed in lower one third of arm. Such variations are significant in nerve compression syndromes in axilla. Such variations need to be assessed while operating in surrounding areas during surgeries around axilla. These variations may relate to emyological or evolutionary process. Such variations are important in drainage of axillary abscess. Such extra roots may give false reading in nerve stimulation tests and physiological assessment tests. Axillary region is important for east cancer surgeries which makes this area open to further research and exploration. Variations of median nerve formation at the level of achial plexus are important in nerve compression syndrome .The surgeons should be aware of such anomalies while operating around axilla and upper one third of arm.