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Anterior interosseous nerve: anatomical study and clinical implications()
OBJECTIVE: The goal of this study was to describe anatomical variations and clinical implications of anterior interosseous nerve. In complete anterior interosseous nerve palsy, the patient is unable to flex the distal phalanx of the thumb and index finger; in incomplete anterior interosseous nerve p...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147764/ https://www.ncbi.nlm.nih.gov/pubmed/30245997 http://dx.doi.org/10.1016/j.rboe.2018.07.010 |
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author | Caetano, Edie Benedito Vieira, Luiz Angelo Sabongi Neto, João José Caetano, Maurício Benedito Ferreira Sabongi, Rodrigo Guerra |
author_facet | Caetano, Edie Benedito Vieira, Luiz Angelo Sabongi Neto, João José Caetano, Maurício Benedito Ferreira Sabongi, Rodrigo Guerra |
author_sort | Caetano, Edie Benedito |
collection | PubMed |
description | OBJECTIVE: The goal of this study was to describe anatomical variations and clinical implications of anterior interosseous nerve. In complete anterior interosseous nerve palsy, the patient is unable to flex the distal phalanx of the thumb and index finger; in incomplete anterior interosseous nerve palsy, there is less axonal damage, and either the thumb or the index finger are affected. METHODS: This study was based on the dissection of 50 limbs of 25 cadavers, 22 were male and three, female. Age ranged from 28 to 77 years, 14 were white and 11 were non-white; 18 were prepared by intra-arterial injection of a solution of 10% glycerol and formaldehyde, and seven were freshly dissected cadavers. RESULTS: The anterior interosseous nerve arose from the median nerve, an average of 5.2 cm distal to the intercondylar line. In 29 limbs, it originated from the nerve fascicles of the posterior region of the median nerve and in 21 limbs, of the posterolateral fascicles. In 41 limbs, the anterior interosseous nerve positioned between the humeral and ulnar head of the pronator teres muscle. In two limbs, anterior interosseous nerve duplication was observed. In all members, it was observed that the anterior interosseous nerve arose from the median nerve proximal to the arch of the flexor digitorum superficialis muscle. In 24 limbs, the branches of the anterior interosseous nerve occurred proximal to the arch and in 26, distal to it. CONCLUSION: The fibrous arches formed by the humeral and ulnar heads of the pronator teres muscle, the fibrous arch of the flexor digitorum superficialis muscle, and the Gantzer muscle (when hypertrophied and positioned anterior to the anterior interosseous nerve), can compress the nerve against deep structures, altering its normal course, by narrowing its space, causing alterations longus and flexor digitorum profundus muscles. |
format | Online Article Text |
id | pubmed-6147764 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-61477642018-09-21 Anterior interosseous nerve: anatomical study and clinical implications() Caetano, Edie Benedito Vieira, Luiz Angelo Sabongi Neto, João José Caetano, Maurício Benedito Ferreira Sabongi, Rodrigo Guerra Rev Bras Ortop Original Article OBJECTIVE: The goal of this study was to describe anatomical variations and clinical implications of anterior interosseous nerve. In complete anterior interosseous nerve palsy, the patient is unable to flex the distal phalanx of the thumb and index finger; in incomplete anterior interosseous nerve palsy, there is less axonal damage, and either the thumb or the index finger are affected. METHODS: This study was based on the dissection of 50 limbs of 25 cadavers, 22 were male and three, female. Age ranged from 28 to 77 years, 14 were white and 11 were non-white; 18 were prepared by intra-arterial injection of a solution of 10% glycerol and formaldehyde, and seven were freshly dissected cadavers. RESULTS: The anterior interosseous nerve arose from the median nerve, an average of 5.2 cm distal to the intercondylar line. In 29 limbs, it originated from the nerve fascicles of the posterior region of the median nerve and in 21 limbs, of the posterolateral fascicles. In 41 limbs, the anterior interosseous nerve positioned between the humeral and ulnar head of the pronator teres muscle. In two limbs, anterior interosseous nerve duplication was observed. In all members, it was observed that the anterior interosseous nerve arose from the median nerve proximal to the arch of the flexor digitorum superficialis muscle. In 24 limbs, the branches of the anterior interosseous nerve occurred proximal to the arch and in 26, distal to it. CONCLUSION: The fibrous arches formed by the humeral and ulnar heads of the pronator teres muscle, the fibrous arch of the flexor digitorum superficialis muscle, and the Gantzer muscle (when hypertrophied and positioned anterior to the anterior interosseous nerve), can compress the nerve against deep structures, altering its normal course, by narrowing its space, causing alterations longus and flexor digitorum profundus muscles. Elsevier 2018-08-02 /pmc/articles/PMC6147764/ /pubmed/30245997 http://dx.doi.org/10.1016/j.rboe.2018.07.010 Text en © 2017 Sociedade Brasileira de Ortopedia e Traumatologia. Published by Elsevier Editora Ltda. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Original Article Caetano, Edie Benedito Vieira, Luiz Angelo Sabongi Neto, João José Caetano, Maurício Benedito Ferreira Sabongi, Rodrigo Guerra Anterior interosseous nerve: anatomical study and clinical implications() |
title | Anterior interosseous nerve: anatomical study and clinical implications() |
title_full | Anterior interosseous nerve: anatomical study and clinical implications() |
title_fullStr | Anterior interosseous nerve: anatomical study and clinical implications() |
title_full_unstemmed | Anterior interosseous nerve: anatomical study and clinical implications() |
title_short | Anterior interosseous nerve: anatomical study and clinical implications() |
title_sort | anterior interosseous nerve: anatomical study and clinical implications() |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147764/ https://www.ncbi.nlm.nih.gov/pubmed/30245997 http://dx.doi.org/10.1016/j.rboe.2018.07.010 |
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