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Investigating Mechanisms of Tendon Damage by Measuring Multi-scale Recovery Following Tensile Loading

Overview
Journal Acta Biomater
Publisher Elsevier
Date 2017 Apr 25
PMID 28435080
Citations 25
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Abstract

Statement Of Significance: Tendon pathology is associated with mechanically induced damage. Damage, as defined in engineering, is an irreversible change in microstructure that alters the macroscopic mechanical properties. Although microstructural damage and changes to macroscale mechanics are likely, this link to microstructural change was not yet established. We conducted multiscale mechanical testing to investigate the mechanism of tendon damage by simultaneously quantifying macroscale mechanical and microstructural changes. We showed that non-recoverable sliding between collagen fibrils is a mechanism for tendon damage. Establishing the mechanism of damage at multiple length scales can improve prevention and rehabilitation strategies for tendon pathology.

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