A meta-analysis on the anatomical variability of the brachial plexus: Part I-Roots, trunks, divisions and cords

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F71226401%3A_____%2F21%3AN0100679" target="_blank" >RIV/71226401:_____/21:N0100679 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21230/21:00355120 RIV/00216208:11130/21:10427356 RIV/00064173:_____/21:N0000121

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0940960221000777?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0940960221000777?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aanat.2021.151751" target="_blank" >10.1016/j.aanat.2021.151751</a>

Result language

angličtina

Original language name

A meta-analysis on the anatomical variability of the brachial plexus: Part I-Roots, trunks, divisions and cords

Original language description

Introduction: The brachial plexus is a complex anatomical structure that gives rise to all the nerves of the upper limb. Its variability is frequently observed and represents a challenge for interventions in the lower neck and axilla. The aim of this study was to present a comprehensive and evidence-based review with meta-analytic techniques on the variability of roots, trunks, divisions and cords of the brachial plexus. Materials and methods: Major medical databases were searched to identify all anatomical studies investigating the variability in the formation of the brachial plexus. Data extracted consisted of demographic information, morphometric parameters, the arrangement of the brachial plexus at the level of the roots, trunks, divisions and cords and the relationship of the brachial plexus to the axillary artery and scalene muscles. The different configurations of the brachial plexus were put into a new classification, and the pooled prevalence of each case was calculated using a random effects model. A sub-analysis on age and geographical location was also performed. Results: A total of 40 studies (3055 upper limbs) were included in the meta-analysis. The regular arrangement of roots forming trunks was identified in 84% (95% CI 79–89%) of cases. The overall prevalence of the prefixed and postfixed brachial plexus was 11% (95% CI 6–17%) and 1% (95% CI 0–1%), respectively and in less than 0.1% of cases the brachial plexus received a branch from both C4 and T2. For divisions forming cords, the regular arrangement was observed in 96% (95% CI 93–98%) of cases. Additional communicating branches between the components of the brachial plexus appeared in 5% (95% CI 3–7%) of cases. The relationship of the brachial plexus to the axillary artery and scalene muscles was considered regular in 96% (95% CI 89–100%) and 86% (95% CI 66–98%) of cases, respectively. Analysis of the morphometric parameters revealed the proportional consistency between the components forming the plexus during aging. Conclusions: Knowledge of anatomical variations of the brachial plexus is important for examinations and interventions in the lower neck and axilla. The variability was observed especially in the roots forming trunks, while divisions forming cords showed quite stable appearance. The results of this evidence-based review and meta-analysis can be applied in many different medical disciplines.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30106 - Anatomy and morphology (plant science to be 1.6)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Annals of Anatomy

ISSN

0940-9602

e-ISSN

—

Volume of the periodical

2021

Issue of the periodical within the volume

238

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

151751

UT code for WoS article

000707738600008

EID of the result in the Scopus database

2-s2.0-85107276161