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

Acta Cirurgica Brasileira

Adson Do Socorro Sá Costa²  José Alberto Dias Leite¹  Francisco Erivan Abreu Melo¹  Sérgio Botelho Guimarães¹ 

[1],UFC,Brazil

关键词: Biomechanics;    Cadaver;    Shoulder;    Stress;    Mechanical;    Biomecânica;    Cadáver;    Ombro;    Estresse Mecânico;   

DOI  :  10.1590/S0102-86502006000400005

来源: SciELO

【 摘 要 】

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

【 授权许可】

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