Mechanical properties of intrasynovial and extrasynovial tendon fascicles

Richard H. Shin, Chunfeng Zhao, Mark E. Zobitz, Peter C. Amadio, Kai Nan An

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

Background: Tendon grafting in tendon reconstruction often involves the interchange of intrasynovial and extrasynovial tendons. Although many studies have examined the cellular and biological differences between tendons of various sources, few have studied the mechanical properties of these two different types of tendons. The purpose of this study was to investigate the mechanical properties of intrasynovial and extrasynovial tendons. Methods: Canine peroneus longus (extrasynovial) and flexor digitorum profundus (intrasynovial) tendons, further subdivided into intrasynovial tendinous and intrasynovial fibrocartilaginous segments, were used in the study. An indentation test was used to measure the compressive modulus. Tensile testing was performed on 400 μm longitudinal sections. Findings: The compressive modulus of the intrasynovial fibrocartilaginous segment was significantly higher than that of the intrasynovial tendinous segment, which was in turn significantly higher than that of the extrasynovial tendon (P < 0.0001). The tensile modulus of extrasynovial tendon was significantly higher than that of intrasynovial fibrocartilaginous and intrasynovial tendinous segments (P < 0.005). The tensile modulus of the intrasynovial fibrocartilaginous and tendinous segments was not significantly different (P = 0.14). Interpretation: The results suggest that extrasynovial tendons exhibit superior tensile properties but inferior compressive properties when compared to intrasynovial tendons, which is consistent with their biological role in situ, but which could lead to complications when these tendons are repositioned during tendon graft surgery.

原文English
頁(從 - 到)236-241
頁數6
期刊Clinical Biomechanics
23
發行號2
DOIs
出版狀態Published - 2008 二月

All Science Journal Classification (ASJC) codes

  • 生物物理學
  • 骨科和運動醫學

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