Biomechanical properties of the biceps-labral complex submitted to mechanical stress

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

Bibliographic Details

Main Authors:	Costa,Adson do Socorro Sá, Leite,José Alberto Dias, Melo,Francisco Erivan Abreu, Guimarães,Sérgio Botelho
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia 2006
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502006000400005
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