In vivo assessment of material properties of muscles and connective tissues around the knee joint based on shear wave elastography

组内相关 解剖 结缔组织 生物力学 肌腱 膝关节 医学 弹性成像 材料科学 生物医学工程 超声波 外科 病理 放射科 临床心理学 心理测量学
作者
Jianan Wu,Zhihui Qian,Wei Liang,Jing Liu,Luquan Ren,Lei Ren
出处
期刊:Journal of The Mechanical Behavior of Biomedical Materials [Elsevier BV]
卷期号:109: 103829-103829 被引量:11
标识
DOI:10.1016/j.jmbbm.2020.103829
摘要

Previous studies on knee biomechanics have mainly focused on the joint structure itself, largely neglecting the material properties of the muscles and connective tissues around the knee joint. Therefore, this study was purposed to conduct a systematic in vivo examination of the material properties of muscles, tendons, and ligaments, and investigated the respective influences of gender and age on the material properties. The participants were 50 healthy males and females within the following four age groups: 21–30 years, 31–40 years, 41–50 years, and above 51 years. The Young's moduli of the muscles, tendons, and ligaments around the knee joint were measured by shear wave elastography (SWE). Analysis of the Young's modulus results showed that excellent repeatability could be achieved by using SWE. For muscles, the intraclass correlation coefficient (ICC) and 95% confidence interval (CI) ranged between 0.952 and 0.987, and 0.923 and 0.992, respectively. The ICC ranged from 0.920 to 0.941, and the 95% CI was between 0.872 and 0.969 for tendons and ligaments. Additionally, the Young's moduli of the muscles, tendons, and ligaments of males were greater than those of females. With the exception for medial patellar retinaculum (MPR), the Young's moduli of other observed tissues decreased with age for both males and females, indicating that age has a significant impact on the Young's moduli of muscles, tendons, and ligaments. Hence, SWE is a reliable and repeatable technique that can be used to assess the Young's moduli of the muscles, tendons, and ligaments around the knee joint. Furthermore, gender and age affects the material properties. The results of this study provide an in vivo database of the material properties of muscles and connective tissues, and thus may prove useful for the prevention and treatment of knee joint injuries and diseases.
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