Abstract
Ligaments function as short bands of fibrous connective tissue that connect bone or supporting soft tissue structures. The organization of the ligament is hierarchical. Ligaments are composed of bundles of type I collagen fiber, which make approximately 70% of the dry weight of the tissue (1). Small amounts of elastin are present, with rows of fibroblasts within parallel bundles of extracellular matrix. In the hierarchical structure of the ligament, the collagen matrix comprises a series of fibrils, which are then grouped into fibers forming a subfascicular unit (Fig. 1) (2). The subfascicular units are surrounded by a thin layer of connective tissue. Multiple subfascicular units are bound together to form a fasciculus that can range from microns to millimeters in diameter.
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Tohyama, H., Yasuda, K. (2012). Basic science of ligament healing. In: The Knee Joint. Springer, Paris. https://doi.org/10.1007/978-2-287-99353-4_5
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DOI: https://doi.org/10.1007/978-2-287-99353-4_5
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