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A new femoral fixation device for anterior cruciate ligament reconstruction using the outside-in technique and hamstring tendon graft: A comparison between two devices in cadaveric human knee models

机译:一种新的股骨固定装置,用于使用外部技术和腿筋肌腱移植的前十字韧带重建:尸体人膝部模型中的两个装置比较

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Abstract Background A new device (T-anchor) was developed for ACL reconstruction and is implanted via the outside-in technique using hamstring grafts. The purpose of this study was to compare the T-anchor with the EndoButton Direct. Methods This study was conducted on 30 cadaveric knees (15 matched pairs). There were two groups of 15 each in the T-anchor and EndoButton Direct groups. After the harvest of grafts, fixation site profile and graft length were measured by loading the grafts onto both devices. They were then tested on a universal testing machine to assess elongation after cyclic loading, load to failure, ultimate load, and mode of failure. Results The fixation site profile was lower in the T-anchor group than in the EndoButton Direct group (2.3±0.4mm vs. 4.7±1.0mm, P P P =0.015). There was no statistically significant difference in ultimate load and load to failure between the T-anchor and EndoButton Direct groups. For mode of failure, the T-anchor fared better ( P =0.013) with all failures attributed to specimens. Conclusions In this cadaveric study, the new device, T-anchor, performed better than the EndoButton Direct with respect to the above-mentioned study parameters except for ultimate load and load to failure. ]]>
机译:摘要背景开发了一种新的设备(T锚)用于ACL重建,并通过腿筋移植物通过外面的技术植入。本研究的目的是将T型锚与Endoobutton直接进行比较。方法在30个尸体膝盖(15对成对)上进行该研究。 T-Anchor和Endoobutton直接组中有两组15个。通过将移植物加载到两个装置上以通过将移植物加载到两种装置上来测量后,通过将移植物加载到两种装置之后。然后在通用试验机上测试它们以评估循环加载后的伸长率,负载到失效,终极载荷和失效模式。结果固定位点曲线在T锚组中低于Endobutton直接组(2.3±0.4mm,4.7±1.0mm,P P = 0.015)。最终负载和T-Anchor和Endoobutton直接组之间的负载没有统计学上的显着差异。对于失败模式,T-Anchor更好(P = 0.013),所有故障归因于标本。结论在该尸体研究中,新器件T锚比Endobutton直接表现优于上述研究参数,除了最终负载和负载失败。 ]]>

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