Anatomic grounds for the transposition of the thoracodorsal nerve in case of neurotization of brachial plexus nerve damage

The goal is to identify topographic, anatomic, and constitutional features of thoracodorsal and musculocutaneous nerves of brachial plexus.Materials and methods. Anthropometry of 45 corpses was carried out to determine growth; length of the trunk and upper extremities; circumference of neck, thoraci...

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Main Authors: N. S. Gorbunov, K. V. Kober, E. N. Protasyuk, S. I. Rostovtsev, P. A. Samotesov
Format: Article
Language:English
Published: Siberian State Medical University (Tomsk) 2021-04-01
Series:Бюллетень сибирской медицины
Subjects:
Online Access:https://bulletin.ssmu.ru/jour/article/view/4272
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author N. S. Gorbunov
K. V. Kober
E. N. Protasyuk
S. I. Rostovtsev
P. A. Samotesov
author_facet N. S. Gorbunov
K. V. Kober
E. N. Protasyuk
S. I. Rostovtsev
P. A. Samotesov
author_sort N. S. Gorbunov
collection DOAJ
description The goal is to identify topographic, anatomic, and constitutional features of thoracodorsal and musculocutaneous nerves of brachial plexus.Materials and methods. Anthropometry of 45 corpses was carried out to determine growth; length of the trunk and upper extremities; circumference of neck, thoracic cage, shoulder and forearm; lateral dimensions of shoulders, thoracic cage and pelvis; anteroposterior size of thoracic cage; neck circumference. Morphometry of all brachial plexus components (length, thickness of nerves and angles of their origin) was performed after its  anatomic preparation.Results. The cephalic type of brachial plexus with participation of C4 spinal nerve was found in 7% of cases. The caudal type with inclusion of Th2 spinal nerve was found in 4% of cases. In 4% of cases, there was no musculocutaneous nerve, at the same time shoulder biceps innervates median nerve. In 93% of cases, the thoracodorsal nerve originates from posterior secondary bundle along lower posterior surface, in 7% it is an axillary nerve branch. Neck circumference is directly correlated with thoracodorsal nerve length: the larger the neck circumference is, the greater is the nerve length. In females, linear regression equations were derived, which allow estimating thoracodorsal nerve length knowing the thoracic cage width.Conclusion. The length of the thoracodorsal nerve determines the possibility of its transplantation into the musculocutaneous position. The size of neck circumference and, in females, the width of the thoracic cage, for reliability, should be used as external size biomarkers for donor and recipient nerves.
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spelling doaj.art-88160067882640c4bd15eebada621baf2023-03-13T09:58:27ZengSiberian State Medical University (Tomsk)Бюллетень сибирской медицины1682-03631819-36842021-04-01201313810.20538/1682-0363-2021-1-31-382750Anatomic grounds for the transposition of the thoracodorsal nerve in case of neurotization of brachial plexus nerve damageN. S. Gorbunov0K. V. Kober1E. N. Protasyuk2S. I. Rostovtsev3P. A. Samotesov4Красноярский государственный медицинский университет (КрасГМУ) им. проф. В.Ф. Войно-Ясенецкого; Научно-исследовательский институт (НИИ) медицинских проблем СевераКрасноярский государственный медицинский университет (КрасГМУ) им. проф. В.Ф. Войно-ЯсенецкогоКрасноярский государственный медицинский университет (КрасГМУ) им. проф. В.Ф. Войно-ЯсенецкогоКрасноярский государственный медицинский университет (КрасГМУ) им. проф. В.Ф. Войно-ЯсенецкогоКрасноярский государственный медицинский университет (КрасГМУ) им. проф. В.Ф. Войно-ЯсенецкогоThe goal is to identify topographic, anatomic, and constitutional features of thoracodorsal and musculocutaneous nerves of brachial plexus.Materials and methods. Anthropometry of 45 corpses was carried out to determine growth; length of the trunk and upper extremities; circumference of neck, thoracic cage, shoulder and forearm; lateral dimensions of shoulders, thoracic cage and pelvis; anteroposterior size of thoracic cage; neck circumference. Morphometry of all brachial plexus components (length, thickness of nerves and angles of their origin) was performed after its  anatomic preparation.Results. The cephalic type of brachial plexus with participation of C4 spinal nerve was found in 7% of cases. The caudal type with inclusion of Th2 spinal nerve was found in 4% of cases. In 4% of cases, there was no musculocutaneous nerve, at the same time shoulder biceps innervates median nerve. In 93% of cases, the thoracodorsal nerve originates from posterior secondary bundle along lower posterior surface, in 7% it is an axillary nerve branch. Neck circumference is directly correlated with thoracodorsal nerve length: the larger the neck circumference is, the greater is the nerve length. In females, linear regression equations were derived, which allow estimating thoracodorsal nerve length knowing the thoracic cage width.Conclusion. The length of the thoracodorsal nerve determines the possibility of its transplantation into the musculocutaneous position. The size of neck circumference and, in females, the width of the thoracic cage, for reliability, should be used as external size biomarkers for donor and recipient nerves.https://bulletin.ssmu.ru/jour/article/view/4272плечевое сплетениеморфометриягрудоспинной нервмышечно-кожный нервтранспозиция
spellingShingle N. S. Gorbunov
K. V. Kober
E. N. Protasyuk
S. I. Rostovtsev
P. A. Samotesov
Anatomic grounds for the transposition of the thoracodorsal nerve in case of neurotization of brachial plexus nerve damage
Бюллетень сибирской медицины
плечевое сплетение
морфометрия
грудоспинной нерв
мышечно-кожный нерв
транспозиция
title Anatomic grounds for the transposition of the thoracodorsal nerve in case of neurotization of brachial plexus nerve damage
title_full Anatomic grounds for the transposition of the thoracodorsal nerve in case of neurotization of brachial plexus nerve damage
title_fullStr Anatomic grounds for the transposition of the thoracodorsal nerve in case of neurotization of brachial plexus nerve damage
title_full_unstemmed Anatomic grounds for the transposition of the thoracodorsal nerve in case of neurotization of brachial plexus nerve damage
title_short Anatomic grounds for the transposition of the thoracodorsal nerve in case of neurotization of brachial plexus nerve damage
title_sort anatomic grounds for the transposition of the thoracodorsal nerve in case of neurotization of brachial plexus nerve damage
topic плечевое сплетение
морфометрия
грудоспинной нерв
мышечно-кожный нерв
транспозиция
url https://bulletin.ssmu.ru/jour/article/view/4272
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