biomechanical properties of the biceps-labral complex submitted to mechanical stress propriedades biomecânicas do complexo labrum-glenóide bicipital superior submetido ao estresse mecânico

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ID: 211341
2006
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Abstract
PURPOSE: To determine biomechanical properties of the superior labrum-biceps tendon complex submitted to continuous and sudden mechanical strain. METHODS: Eighteen shoulder specimens from 15 unclaimed corpses, ages ranging from 20 to 40 years, were submitted to continuous or sudden tensile tests using 3 different traction machines. Shoulders presenting signs of degenerative diseases or preexisting traumatic lesions were excluded. RESULTS: Rupture of the distal portion of the long hand of the biceps occurred when stretching forces reached 290N in continuous traction and 384N in sudden traction. No labral-complex lesions were observed. CONCLUSION: Either a simple continuous or a sudden uniaxial traction of the arm do not play a role in the genesis of superior labrum anterior-posterior (SLAP) lesions in the shoulder joint. produce
OBJETIVO: Determinar as propriedades biomecânicas do complexo labrum-glenóide bicipital superior submetido ao estresse mecânico contínuo ou repetitivo (repentino). MÉTODOS: Dezoito ombros provenientes de 15 cadáveres não reclamados, idades na faixa de 20 a 40 anos, foram submetidos aos testes de tração contínua ou repentina usando três diferentes máquinas de tração. Foram excluídos do estudo os ombros que apresentavam lesões degenerativas ou evidências de lesões traumáticas pré-existentes. RESULTADOS: Ocorreu ruptura da porção distal do tendão do bíceps sob a tensão contínua de 290 N e de 348N na tração repentina. Não foram observadas lesões no complexo labrum-bicipital. CONCLUSÃO: A simples tração contínua ou súbita do braço não produz lesões do complexo Labrum Glenóide Bicipital Superior (SLAP) na articulação do ombro.
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costa2006actabiomechanical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Adson do Socorro Sá Costa;José Alberto Dias Leite;Francisco Erivan Abreu Melo;Sérgio Botelho Guimarães
Journal forensic science international
Year 2006
DOI
10.1590/S0102-86502006000400005
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502006000400005
Keywords
stress biomechanics shoulder cadaver

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