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. 2025 May 17.
doi: 10.1007/s12565-025-00847-0. Online ahead of print.

Unprecedented brachial plexus: a novel variant

Abhishek Sharma  1 , Urvashi Singh  1 , Pooja Jain  2 , Anjoo Yadav  1 , Mohit Chauhan  3 , Ankit Srivastava  4
Affiliations

Unprecedented brachial plexus: a novel variant

Abhishek Sharma et al. Anat Sci Int. .

Abstract

Anatomic variations in the brachial plexus, observed in a 78-year-old Indian male cadaver, are clinically significant for surgical planning and nerve blocks. Deviations in root values and branching patterns can lead to abnormal sensory or motor dysfunction during interventions. Understanding these variations is essential for minimizing complications and improving the effectiveness of procedures. These findings emphasize the importance of detailed knowledge of brachial plexus anatomy for safe and precise clinical practice.

Keywords: Brachial plexus; Brachial plexus block; Lower trunk; Subscapular artery; Upper trunk.

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Conflict of interest statement

Declaration. Conflict of interest: The present study has been conducted on the bodies donated to the department of anatomy. The study conducted is in accordance with the Helsinki Declaration and with local ethical guidelines. Informed consent that the body would be utilized for teaching and research purposes was obtained at the time of body donation itself. This is an original work conducted in the Department of Anatomy. There are no conflicts of interest among the authors. The study has been undertaken with the intention that it would enhance and add to the existing knowledge. Ethical approval: The present study has been conducted on cadavers donated to the Department of Anatomy for teaching and research. The consent form for body donation at the time of pledging for body donation clarifies that the body donated will be utilized for teaching medical students and research purposes.

References

    1. Adam A et al (2011) Absence of upper trunk of the brachial plexus. Int J Appl Basic Med Res 1(2):123 - DOI - PubMed - PMC
    1. Ballesteros LE, Forero PL, Buitrago ER (2015) Communication between the musculocutaneous and median nerves in the arm: an anatomical study and clinical implications. Revista Brasileira De Ortopedia (English Edition) 50(5):567–572 - DOI
    1. Benes M et al (2021) A meta-analysis on the anatomical variability of the brachial plexus: part I—roots, trunks, divisions and cords. Ann Anatomy 238
    1. Caetano EB et al (2016) Anatomic study of the nervous communication between the median and musculoucutaneous nerve. Acta Ortopedica Brasileira 24(4):200–203 - DOI - PubMed - PMC
    1. Choi D et al (2002) Patterns of connections between the musculocutaneous and median nerves in the axilla and arm. Clin Anat 15(1):11–17 - DOI - PubMed

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