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MULTIFILAMENT STAINLESS STEEL AS A CORE SUTURE MATERIAL IN FLEXOR TENDON REPAIR

机译:弯曲肌腱修复中的芯片不锈钢作为芯缝线材料

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Over the past decades flexor tendons have been repaired using many repair configurations and suture types. The result of the repair depends on the method of attachment of the suture to the tendon(1), as well as the characteristics of the suture material(2). Both the ultimate tensile strength of the repair and the force needed to produce a 2mm gap at the repair site are important(3). Ultimate tensile strength and gap formation depend on the number of strands crossing the repair site, the characteristics of the suture material(4,5), and the repair configuration to the tendon. Stiffer sutures allow less gap formation for the same applied force(5). The repair also depends on the knot holding ability of the suture, because sutures fail most frequently at the knots. This is either because the knots untie or the suture is weakened at these points. The ideal combination is a suture technique that provides a strong attachment to the tendon, with a suture that is strong and resists elongation. Combined with these features the method should also be relatively simple to perform, with suture that is manageable and easy to tie. With these characteristics in mind, we evaluated the in-situ biomechanical performance of a new multifilament stainless steel suture (MFSS) material for flexor tendon repairs. The MFSS was compared to current suture materials in its mechanical properties, knot holding ability, and in a cadaver model simulating a flexor tendon tear.
机译:在过去的几十年中,使用许多维修配置和缝合类型进行了修复了Flexor筋。修复结果取决于缝合线与肌腱(1)的附着的方法,以及缝合材料(2)的特性。修复的最终拉伸强度和在修复部位产生2mm间隙所需的力是重要的(3)。最终拉伸强度和间隙形成取决于穿过修复部位的股线的数量,缝合材料(4,5)的特性,以及肌腱的修复构型。静止缝合线允许相同施加的力(5)的较少的间隙形成。修复还取决于缝合线的结持能力,因为缝线最常在结处失效。这要么是因为在这些点处减弱了显着或缝合线。理想的组合是一种缝合技术,其提供对肌腱的强连接,其缝合线具有强烈的并且抵抗伸长率。结合这些特征,该方法还应该相对简单地执行,用缝合线可控且易于领带。通过这些特点,我们评估了用于弯曲肌腱修理的新型多丝不锈钢缝合线(MFSS)材料的原位生物力学性能。将MFSS与当前缝合材料进行比较,以其机械性能,结保持能力,以及模拟屈肌肌腱撕裂的尸体模型。

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