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滑车是屈指肌腱滑膜鞘表面的纤维层在不同部位增厚所形成的不同宽度、厚度和形态的致密结缔组织带，它们的主要作用是防止肌腱形成弓弦。滑车的修复与重建是手肌腱外科的一个难题。为此已开展了一些基础理论方面的研究以指导临床实践。本文综述了近些年来对滑车系统的基础理论研究，主要包括滑车系统的形态学、功能及生物力学和滑车重建的理论基础，旨在阐明滑车系统的基础研究现状并对目前尚存在的问题进行了分析。
Pulley is a dense connective tissue of different widths, thicknesses and morphologies formed by thickening of the fibrous layer on the surface of the tendon synovial sheath. The main function of the block is to prevent the tendons from forming bowstring. The repair and reconstruction of the pulley is a difficult problem for hand tendon surgery. To this end, some basic theoretical studies have been conducted to guide clinical practice. This paper summarizes the basic theoretical research of the trolley system in recent years, including the morphological, functional and biomechanical characteristics of the trolley system and the theoretical basis of the trolley reconstruction. The purpose is to clarify the basic research status of the trolley system and to make some existing problems Analysis.