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首页> 外文期刊>Arthroscopy: the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association >Arthroscopic Fixation of Tibial Eminence Fractures: A Biomechanical Comparative Study of Screw, Suture, and Suture Anchor
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Arthroscopic Fixation of Tibial Eminence Fractures: A Biomechanical Comparative Study of Screw, Suture, and Suture Anchor

机译：胫骨辐射骨折的关节镜检查：螺杆，缝合和缝合锚的生物力学对比研究

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摘要

To compare biomechanical outcomes of 4 different arthroscopic techniques for fixation of tibial eminence fractures. Methods: Twenty-four skeletally mature, fresh-frozen cadaveric knees were divided into 4 comparison groups based on the fixation method: screw fixation (group A), traditional sutures fixation with 2 FiberWire sutures (group B), a modified suture technique with 2 FiberWire sutures that created neckwear knots to firmly trap the fracture fragment (group C), or suture anchors which was based on the suture bridge technique primarily used in the shoulder for repair of rotator cuff tears and greater tuberosity fractures (group D). A tibial eminence fracture was created in each knee for subsequent fixation. After fixation, each knee underwent cyclic loading of 100 N to assess the displacement change after 500 cycles of the fixation construct. Afterward, a single tensile failure test load was performed to assess the ultimate failure load, stiffness, and failure mode for each specimen. Results: All specimens survived cyclic testing and were subsequently loaded to failure. Group C had the highest ultimate failure load (P .05) and group D had the lowest displacement compared with the other 3 groups (P .05). Different failure modes were found among the 4 groups. Conclusions: Suture fixation using the neckwear knots technique provides superior fixation with regard to higher ultimate failure load, and absorbable suture anchor fixation with the suture bridge technique provides less displacement under cyclic loading conditions. Both techniques exhibited superior biomechanical properties compared with traditional screw and suture fixation.
机译：比较4种不同关节镜技术的生物力学结果，用于固定胫骨偏离骨折。方法：二十四个骨骼成熟，新鲜冷冻的尸体膝盖分为4个比较组，基于固定方法：螺钉固定（A组），传统缝合固定用2个纤维缝合线（B组），一种改进的缝合技术2产生领带结的纤维缝线牢固地捕获断裂片段（C组）或基于缝合桥技术的缝线锚，主要用于肩部的肩部撕裂撕裂和更大的结节裂缝（D组D）。在每个膝关节中产生胫骨卓越骨折以进行后续固定。固定后，每个膝关节接受100 n的循环加载，以评估固定构建体的500次循环后的位移变化。之后，进行单个拉伸衰竭试验载荷以评估每个样本的最终失效负载，刚度和失效模式。结果：所有标本均存活循环试验，随后加载到故障。 C组具有最高的最终故障载荷（P <.05），与其他3组相比，D组具有最低位移（P <.05）。在4组中发现了不同的失败模式。结论：采用领带结的缝合固定技术在较高的最终故障负载方面提供了卓越的固定，并且具有缝合线桥技术的可吸收缝合锚定固定在循环负载条件下提供较少的位移。与传统的螺杆和缝合固定相比，这两种技术都表现出卓越的生物力学特性。

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