ANALYSIS OF FATTY DEGENERATION OF THE TRAPEZIUS MUSCLE AFTER USE OF ACCESSORY NERVE.

Accessory Nerve. Nerve Transfer. Muscle Skeletal/Innervation. Magnetic Resonance Imaging

Journal

Acta ortopedica brasileira
ISSN: 1413-7852
Titre abrégé: Acta Ortop Bras
Pays: Brazil
ID NLM: 9804509

Informations de publication

Date de publication:
Historique:
entrez: 14 8 2020
pubmed: 14 8 2020
medline: 14 8 2020
Statut: ppublish

Résumé

To investigate, through magnetic resonance imaging, the occurrence of fatty degeneration of the trapezius in adult patients undergoing nerve transfer procedure, using the spinal accessory nerve. A total of 13 patients meeting the criteria of unilateral brachial plexus injury and more than one year of postoperative care after nerve transfer surgery underwent an MRI scan of the trapezius. A T1-weighted 3D sequence was used, with the IDEAL technique using 8.0 mm cut thickness, 8.0 mm cut spacing, TR of 100 ms, TE of 3.45 ms, flip angle of 10 degrees, 20 cuts, on the sagittal plane. The images of the upper, transverse and lower parts of the trapezius muscle were then classified according to the degree of fatty degeneration, compared with the contralateral side, using the Goutallier score. For the upper trapezius there was a change of the degeneration state in 23% (p = 0.083), for the transverse section there was a change in 84.6% (p = 0.003), for the lower one there was a change in 92.3% (p = 0.002). The upper trapezius did not undergo significant degeneration after transfer. The lower and transverse trapezius suffered fatty degeneration in most patients, indicating severe functional impairment. Através de imagens de ressonância magnética, investigar a ocorrência de degeneração gordurosa no músculo trapézio em pacientes adultos submetidos a procedimento de transferência de nervo envolvendo o nervo espinal acessório. 13 pacientes com lesão do plexo braquial unilateral e mais de um ano de cirurgia de transferência de nervo utilizando o nervo espinal acessório foram submetidos a exame de ressonância magnética do músculo trapézio. Foi obtida uma sequência 3D ponderada em T1, com a técnica IDEAL, espessura de corte de 8,0 mm, espaçamento entre os cortes de 8,0 mm, TR de 100 ms, TE de 3,45 ms, flip angle de 10 graus e 20 cortes, no plano sagital. As imagens das porções superior, transversa e inferior do músculo trapézio foram classificadas de acordo com o grau de degeneração gordurosa e comparadas com o lado contralateral, utilizando o score de Goutallier. Para o trapézio superior houve mudança no estado de degeneração em 23% (p = 0,083), para o trapézio transverso houve mudança em 84,6% (p = 0,003), e para o trapézio inferior houve mudança em 92,3% (p = 0,002). O trapézio superior não sofreu degeneração significativa após transferência. Os trapézios inferiores e médios sofreram degeneração gordurosa na maioria dos pacientes, indicando comprometimento funcional severo.

Autres résumés

Type: Publisher (por)
Através de imagens de ressonância magnética, investigar a ocorrência de degeneração gordurosa no músculo trapézio em pacientes adultos submetidos a procedimento de transferência de nervo envolvendo o nervo espinal acessório.

Identifiants

pubmed: 32788861
doi: 10.1590/1413-785220202804233302
pmc: PMC7405843
doi:

Types de publication

Journal Article

Langues

eng

Pagination

186-189

Déclaration de conflit d'intérêts

All authors declare no potential conflict of interest related to this article.

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Auteurs

Lucas Seiki Yamauti (LS)

Universidade de São Paulo, Hospital das Clínicas, Medical School, Institute of Orthopedics and Traumatology, Hand and Microsurgery Group, São Paulo, SP, Brazil.

Danielle Tiemi Simão (DT)

Universidade de São Paulo, Hospital das Clínicas, Medical School, Institute of Orthopedics and Traumatology, Hand and Microsurgery Group, São Paulo, SP, Brazil.

João Carlos Rodrigues (JC)

Universidade de São Paulo, Hospital das Clínicas, Medical School, Institute of Orthopedics and Traumatology, Hand and Microsurgery Group, São Paulo, SP, Brazil.

Luiz Koiti Kimura (LK)

Universidade de São Paulo, Hospital das Clínicas, Medical School, Institute of Orthopedics and Traumatology, Hand and Microsurgery Group, São Paulo, SP, Brazil.

Rames Mattar (R)

Universidade de São Paulo, Hospital das Clínicas, Medical School, Institute of Orthopedics and Traumatology, Hand and Microsurgery Group, São Paulo, SP, Brazil.

Classifications MeSH