Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia, USA.
Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia, USA; Emory Sports Performance and Research Center (SPARC), Flowery Branch, Georgia, U.S.A.
Arthroscopy. 2024 Jan;40(1):124-132. doi: 10.1016/j.arthro.2023.06.020. Epub 2023 Jun 22.
To compare the time-zero biomechanical properties of hamstring graft preparations with or without suture augmentation for anterior cruciate ligament reconstruction (ACLR) in a full-construct cadaveric model.
Hamstring grafts were harvested from 24 fresh frozen human cadavers and prepared in 1 of 3 ways: quadrupled SemiTendinosus (SemiT), and quadrupled SemiT with suture augmentation (SemiT+2.0-mm tape or SemiT+1.3-mm tape; n = 8 per group). Adjustable loop suspensory implants and cortical buttons were used for fixation on a porcine tibia and acrylic block. Testing included force-controlled cyclic loading at 250 N and 400 N followed by load to failure.
The 2 suture augmentation groups had less total elongation and increased stiffness compared to the nonsuture-augmented group (P = .025). The SemiT+2.0-mm tape group had 36% less total elongation and 34% increased stiffness compared to SemiT+1.3mm tape (P < .001).
Suture augmentation improves construct biomechanics at time zero following hamstring tendon ACLR. Augmentation with 2.0-mm tape suture improves construct biomechanics compared to 1.3-mm tape suture.
Independent suture augmentation of a quadrupled SemiT graft improves ACLR construct biomechanics. Outcomes were improved with augmentation using 2.0-mm tape suture compared to 1.3-mm tape suture.
在全构建尸体模型中比较前交叉韧带重建（ACLR）中带有或不带有缝线增强的腘绳肌腱移植物准备的零时生物力学特性。
从 24 个新鲜冷冻的人体尸体中采集腘绳肌腱，并以 3 种方式之一进行准备：四倍半腱肌（SemiT），以及带有缝线增强的四倍半腱肌（SemiT+2.0-mm 带或 SemiT+1.3-mm 带；每组 8 个）。可调环悬挂植入物和皮质按钮用于在猪胫骨和丙烯酸块上固定。测试包括在 250N 和 400N 的力控制循环加载后进行失效负载。
与未增强缝线的组相比，2 个缝线增强组的总伸长量较小，刚度增加（P=0.025）。与 SemiT+1.3mm 带相比，SemiT+2.0mm 带组的总伸长量减少了 36%，刚度增加了 34%（P<0.001）。
腘绳肌腱 ACLR 后，缝线增强可改善零时结构的生物力学性能。与 1.3mm 带缝线增强相比，2.0mm 带缝线增强可改善构建生物力学性能。
独立的四倍半腱肌移植物缝线增强可改善 ACLR 构建的生物力学性能。与 1.3mm 带缝线增强相比，使用 2.0mm 带缝线增强可改善结果。
