Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial Artery
Medial antebrachial cutaneous nerve (MACN) courses in the medial arm to provide sensory innervation to the medial forearm. Its anatomy has been partly described since data regarding its branching pattern and distances to adjacent landmarks are still lacking. The purpose of this study was to provide...
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Sociedad Chilena de Anatomía
2014
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oai:scielo:S0717-950220140002000182015-11-16Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial ArteryDamwan,AomjaiAgthong,SithipornAmarase,ChavarinYotnuengnit,PattarapolHuanmanop,ThanasilChentanez,Vilai Medial antebrachial cutaneous nerve Anatomy Medial epicondyle Basilic vein Brachial artery Medial antebrachial cutaneous nerve (MACN) courses in the medial arm to provide sensory innervation to the medial forearm. Its anatomy has been partly described since data regarding its branching pattern and distances to adjacent landmarks are still lacking. The purpose of this study was to provide morphometric anatomy of the MACN with comparisons between sides and sexes. Ninety-six upper extremities from 26 males and 22 females were dissected. We found that up to 5 branches of MACN pierced the deep fascia with the maximum of 4 reaching the interepicondylar line (IEL). Presence of 2 and 3 branches was found in the majority of cases (> 80%). The distances from these branches to the landmarks varied considerably. In case of no branch, the mean distances to the medial epicondyle (ME) and brachial artery (BA) were approximately 1.5 cm while those to the basilic vein (BV) were 0.7 cm in both sexes. Regardless of the branching pattern, the MACN could pass over or close (within 0.5 cm) to the ME, BV and BA. Asymmetry in the branching pattern was found in 50% of specimens. Sex but not side differences were observed in some measurement parameters. These data are crucial for not only localizing the MACN during nerve block and graft harvest but also avoiding the nerve injury during surgical procedures.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.32 n.2 20142014-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200018en10.4067/S0717-95022014000200018 |
institution |
Scielo Chile |
collection |
Scielo Chile |
language |
English |
topic |
Medial antebrachial cutaneous nerve Anatomy Medial epicondyle Basilic vein Brachial artery |
spellingShingle |
Medial antebrachial cutaneous nerve Anatomy Medial epicondyle Basilic vein Brachial artery Damwan,Aomjai Agthong,Sithiporn Amarase,Chavarin Yotnuengnit,Pattarapol Huanmanop,Thanasil Chentanez,Vilai Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial Artery |
description |
Medial antebrachial cutaneous nerve (MACN) courses in the medial arm to provide sensory innervation to the medial forearm. Its anatomy has been partly described since data regarding its branching pattern and distances to adjacent landmarks are still lacking. The purpose of this study was to provide morphometric anatomy of the MACN with comparisons between sides and sexes. Ninety-six upper extremities from 26 males and 22 females were dissected. We found that up to 5 branches of MACN pierced the deep fascia with the maximum of 4 reaching the interepicondylar line (IEL). Presence of 2 and 3 branches was found in the majority of cases (> 80%). The distances from these branches to the landmarks varied considerably. In case of no branch, the mean distances to the medial epicondyle (ME) and brachial artery (BA) were approximately 1.5 cm while those to the basilic vein (BV) were 0.7 cm in both sexes. Regardless of the branching pattern, the MACN could pass over or close (within 0.5 cm) to the ME, BV and BA. Asymmetry in the branching pattern was found in 50% of specimens. Sex but not side differences were observed in some measurement parameters. These data are crucial for not only localizing the MACN during nerve block and graft harvest but also avoiding the nerve injury during surgical procedures. |
author |
Damwan,Aomjai Agthong,Sithiporn Amarase,Chavarin Yotnuengnit,Pattarapol Huanmanop,Thanasil Chentanez,Vilai |
author_facet |
Damwan,Aomjai Agthong,Sithiporn Amarase,Chavarin Yotnuengnit,Pattarapol Huanmanop,Thanasil Chentanez,Vilai |
author_sort |
Damwan,Aomjai |
title |
Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial Artery |
title_short |
Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial Artery |
title_full |
Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial Artery |
title_fullStr |
Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial Artery |
title_full_unstemmed |
Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial Artery |
title_sort |
medial antebrachial cutaneous nerve: anatomical relationship with the medial epicondyle, basilic vein and brachial artery |
publisher |
Sociedad Chilena de Anatomía |
publishDate |
2014 |
url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200018 |
work_keys_str_mv |
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