肌腱是肌肉骨骼系统的软组织，旨在促进关节运动。肌腱表现出与它们的功能相匹配的广泛的力学特性，因此，几十年来一直引起研究人员的兴趣。尺寸是肌腱性能的一个重要方面。组织尺寸的变化通常被视为损伤和退化的迹象，因为它可能意味着组织的炎症或普遍紊乱。尺寸对于确定材料的力学性能和行为也很重要，特别是应力、应变和弹性模量。这使得尺寸在退化肌腱的力学研究中具有重要意义。此外，肌腱的尺寸在计划收获肌腱转移和关节重建的目的是有用的。历史上，为了准确测量软组织的尺寸，人们使用了许多方法，因为测量不当会导致计算特性的较大误差。这些方法可以分为破坏性(通过近似)，接触和非接触，并可以考虑在体内和体外。
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Tendons are soft tissues of the musculoskeletal system that are designed to facilitate joint movement. Tendons exhibit a wide range of mechanical properties matched to their functions and, as a result, have been of interest to researchers for many decades. Dimensions are an important aspect of tendon properties.Change in the dimensions of tissues is often seen as a sign of injury and degeneration, as it may suggest inflammation or general disorder of the tissue. Dimensions are also important for determining the mechanical properties and behaviours of materials, particularly the stress, strain, and elastic modulus. This makes the dimensions significant in the context of a mechanical study of degenerated tendons. Additionally, tendon dimensions are useful in planning harvesting for tendon transfer and joint reconstruction purposes.Historically, many methods have been used in an attempt to accurately measure the dimensions of soft tissue, since improper measurement can lead to large errors in the calculated properties. These methods can be categorised as destructive (by approximation), contact, and non-contact and can be considered in terms of in vivo and ex vivo.
