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首页> 外文期刊>Bone & Joint Research >Knotless anchors with sutures external to the anchor body may be at risk for suture cutting through osteopenic bone
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Knotless anchors with sutures external to the anchor body may be at risk for suture cutting through osteopenic bone

机译：锚体外部缝合的无结锚可能会穿过骨质疏松骨切开缝合线

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ObjectivesThis study evaluated the mechanical performance, under low-load cyclic loading, of two different knotless suture anchor designs: sutures completely internal to the anchor body (SpeedScrew) and sutures external to the anchor body and adjacent to bone (MultiFIX P).MethodsUsing standard suture loops pulled in-line with the rotator cuff (approximately 60°), anchors were tested in cadaveric bone and foam blocks representing normal to osteopenic bone. Mechanical testing included preloading to 10 N and cyclic loading for 500 cycles from 10 N to 60 N at 60 mm/min. The parameters evaluated were initial displacement, cyclic displacement and number of cycles and load at 3 mm displacement relative to preload. Video recording throughout testing documented the predominant source of suture displacement and the distance of ‘suture cutting through bone’.ResultsIn cadaveric bone and foam blocks, MultiFIX P anchors had significantly greater initial displacement, and lower number of cycles and lower load at 3 mm di...
机译：目的本研究评估了两种不同的无结缝缝合锚设计在低负荷循环载荷下的机械性能：完全位于锚体内部的缝合线（SpeedScrew）和位于锚体外部且与骨相邻的缝合线（MultiFIX P）。缝合环与肩袖成一直线（约60°）牵拉，在尸体骨和代表骨质减少骨正常的泡沫块中测试锚。机械测试包括以60 mm / min的速度从10 N到60 N的预加载至10 N和500次循环加载。评估的参数是初始位移，循环位移和循环数以及相对于预载荷的3 mm位移下的载荷。整个测试过程中的视频记录记录了缝合线移位的主要来源和“缝合线穿过骨头”的距离。结果在尸体骨头和泡沫块中，MultiFIX P锚钉的初始移位明显更大，在3 mm di处的循环次数更少，载荷更低...

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