Anatomical Variations of Brachial Plexus in Adult Cadavers; A Descriptive Study

Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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JR_TABO-4-3_011

تاریخ نمایه سازی: 9 شهریور 1400

Abstract:

  Background: Variations of the brachial plexus are common and a better awareness of the variations is of crucial importance to achieve successful results in its surgical procedures. The aim of the present study was to evaluate the anatomical variations of the brachial plexus in adult cadavers.   Methods: Bilateral upper limbs of ۳۲ fresh cadavers (۲۱ males and ۱۱ females) consecutively referred to Guilan legal medicine organization from November ۲۰۱۱ to September ۲۰۱۴, were dissected and the trunks, cords and terminal nerves were evaluated. Results: Six plexuses were prefixed in origin. The long thoracic nerve pierced the middle scalene muscle in ۶ cases in the supra clavicular zone. The suprascapular nerve in ۷ plexuses was formed from posterior division of the superior trunk. Five cadavers showed anastomosis between medial brachial cutaneous nerve and T۱ root in the infra clavicular zone. Terminal branches variations were the highest wherein the ulnar nerve received a communicating branch from the lateral cord in ۳ cases. The median nerve was formed by ۲ lateral roots from lateral cord and ۱ medial root from the medial cord in ۶ cadavers. Some fibers from C۷ root came to the musculocutaneous nerve in ۸ cadavers. Conclusion: The correlation analysis between the variations and the demographic features was impossible due to the small sample size. The findings of the present study suggest a meta-analysis to assess the whole reported variations to obtain a proper approach for neurosurgeons.

Authors

Mohammadreza Emamhadi

Department of Neurosurgery, Brachial Plexus and Peripheral Nerve Injury Center, Guilan University of Medical Science, Rasht, Iran

Shahrokh Yousefzadeh Chabok

Department of Neurosurgery, Guilan University of Medical Sciences, Rasht, Iran

Fariborz Samini

Orthopedic Research Center, Mashhad University of Medical Science, Department of Neurosurgery, Mashhad, Iran

babak Alijani

Department of Neurosurgery, Guilan University of Medical Sciences, Rasht, Iran

Hamid Behzadnia

Department of Neurosurgery, Guilan University of Medical Sciences, Rasht, Iran

Fariborz Ayati Firozabadi

Legal Medicine Organization, Rasht, Iran

Zoheir Reihanian

Department of Neurosurgery, Guilan University of Medical Sciences, Rasht, Iran

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