Anatomical Study of Pronator Teres Muscle Innervation and Clinical Significance in Nerve Transfer

SUMMARY: The anatomical relationship of the median nerve and its innervation pattern are variable and may have direct implications in surgical procedures such as distal nerve transfers. The objective of this study was to evaluate the anatomical variations of pronator teres muscle (PTM) innervation a...

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Autores principales:	Caetano,Edie Benedito, Vieira,Luiz Angelo, Sabongi-Neto,José João, Caetano,Maurício Benedito Ferreira, Sabongi,Rodrigo Guerra, Martinez,Luca, Ogata,Kelson Koiti, Boni,Eduardo Baldy de Sousa
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2018
Materias:	Peripheral nerve injury Nerve transfer Median nerve Anatomic variations
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000401500
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spelling	oai:scielo:S0717-950220180004015002019-09-16Anatomical Study of Pronator Teres Muscle Innervation and Clinical Significance in Nerve TransferCaetano,Edie BeneditoVieira,Luiz AngeloSabongi-Neto,José JoãoCaetano,Maurício Benedito FerreiraSabongi,Rodrigo GuerraMartinez,LucaOgata,Kelson KoitiBoni,Eduardo Baldy de Sousa Peripheral nerve injury Nerve transfer Median nerve Anatomic variations SUMMARY: The anatomical relationship of the median nerve and its innervation pattern are variable and may have direct implications in surgical procedures such as distal nerve transfers. The objective of this study was to evaluate the anatomical variations of pronator teres muscle (PTM) innervation and its clinical significance in nerve transfers. Data were collected regarding the number of median nerve branches, site of their origin, contribution with branches of other muscles and the possibility of transferring expendable branches of PTM to the anterior interosseous nerve (AIN) and radial nerve. The most common origin of the branches was proximal to the humeral intercondylar line. The presence of only one PTM branch was identified in 9 limbs, in which 6 was exclusive for this muscle. The majority of specimens presented more than one branch to the PTM, with two branches in 19, although only 6 of these did not share branches with other muscles. The proximal branch of the PTM was long enough to be transferred to the AIN in 23 limbs and branches of the radial nerve in all. These transfers were possible even during the forearm prone-supination and flexion-extension of the elbow. The use of the PTM branch may be considered for transfers in C7-T1 root injuries of the brachial plexus, with care regarding the availability of multiple PTM branches and tension to the AIN and radial nerve branches.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.36 n.4 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000401500en10.4067/S0717-95022018000401500
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Peripheral nerve injury Nerve transfer Median nerve Anatomic variations
spellingShingle	Peripheral nerve injury Nerve transfer Median nerve Anatomic variations Caetano,Edie Benedito Vieira,Luiz Angelo Sabongi-Neto,José João Caetano,Maurício Benedito Ferreira Sabongi,Rodrigo Guerra Martinez,Luca Ogata,Kelson Koiti Boni,Eduardo Baldy de Sousa Anatomical Study of Pronator Teres Muscle Innervation and Clinical Significance in Nerve Transfer
description	SUMMARY: The anatomical relationship of the median nerve and its innervation pattern are variable and may have direct implications in surgical procedures such as distal nerve transfers. The objective of this study was to evaluate the anatomical variations of pronator teres muscle (PTM) innervation and its clinical significance in nerve transfers. Data were collected regarding the number of median nerve branches, site of their origin, contribution with branches of other muscles and the possibility of transferring expendable branches of PTM to the anterior interosseous nerve (AIN) and radial nerve. The most common origin of the branches was proximal to the humeral intercondylar line. The presence of only one PTM branch was identified in 9 limbs, in which 6 was exclusive for this muscle. The majority of specimens presented more than one branch to the PTM, with two branches in 19, although only 6 of these did not share branches with other muscles. The proximal branch of the PTM was long enough to be transferred to the AIN in 23 limbs and branches of the radial nerve in all. These transfers were possible even during the forearm prone-supination and flexion-extension of the elbow. The use of the PTM branch may be considered for transfers in C7-T1 root injuries of the brachial plexus, with care regarding the availability of multiple PTM branches and tension to the AIN and radial nerve branches.
author	Caetano,Edie Benedito Vieira,Luiz Angelo Sabongi-Neto,José João Caetano,Maurício Benedito Ferreira Sabongi,Rodrigo Guerra Martinez,Luca Ogata,Kelson Koiti Boni,Eduardo Baldy de Sousa
author_facet	Caetano,Edie Benedito Vieira,Luiz Angelo Sabongi-Neto,José João Caetano,Maurício Benedito Ferreira Sabongi,Rodrigo Guerra Martinez,Luca Ogata,Kelson Koiti Boni,Eduardo Baldy de Sousa
author_sort	Caetano,Edie Benedito
title	Anatomical Study of Pronator Teres Muscle Innervation and Clinical Significance in Nerve Transfer
title_short	Anatomical Study of Pronator Teres Muscle Innervation and Clinical Significance in Nerve Transfer
title_full	Anatomical Study of Pronator Teres Muscle Innervation and Clinical Significance in Nerve Transfer
title_fullStr	Anatomical Study of Pronator Teres Muscle Innervation and Clinical Significance in Nerve Transfer
title_full_unstemmed	Anatomical Study of Pronator Teres Muscle Innervation and Clinical Significance in Nerve Transfer
title_sort	anatomical study of pronator teres muscle innervation and clinical significance in nerve transfer
publisher	Sociedad Chilena de Anatomía
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000401500
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Anatomical Study of Pronator Teres Muscle Innervation and Clinical Significance in Nerve Transfer

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