Feucht Matthias J, Grande Eduardo, Brunhuber Johannes, Rosenstiel Nikolaus, Burgkart Rainer, Imhoff Andreas B, Braun Sepp
Department of Orthopaedic Sports Medicine, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany.
Knee Surg Sports Traumatol Arthrosc. 2015 Jan;23(1):132-9. doi: 10.1007/s00167-013-2656-z. Epub 2013 Sep 3.
To evaluate the biomechanical properties of four different suture materials for arthroscopic transtibial pull-out repair of posterior meniscus root tears, with special focus on the meniscus-suture interface.
Forty fresh-frozen lateral porcine menisci were used. The posterior meniscus root was sutured in a standardized fashion with a simple stitch using four different suture materials: group A, No. 2 PDS™; group B, No. 2 Ethibond™; group C, No. 2 FiberWire™; and group D, 2-mm Fibertape™. Meniscus-suture constructs were subjected to cyclic loading followed by load-to-failure testing using a servo-hydraulic material testing machine.
During cyclic loading, group D showed a significantly higher displacement after 100, 500, and 1,000 cycles compared to group A (p < 0.001, p = 0.001, and p = 0.001), and a significantly higher displacement after 100 and 500 cycles compared to group B (p = 0.010 and p = 0.045). Group C showed a significantly higher displacement compared to group A after 100 cycles (p = 0.008). The highest maximum load was observed in group D, with significant differences compared to group A (p = 0.013). Group B showed a significantly higher stiffness compared to group A (p = 0.023), and both group C and group D showed a significantly higher stiffness compared to group A and group B (p < 0.001).
None of the evaluated suture materials provided clearly superior properties over the others during both cyclic loading and load-to-failure testing. Based on the results of this study, FiberWire™ may be the preferred suture material for transtibial pull-out repair of posterior meniscus root tears because of comparably low displacement during cyclic loading and high values for maximum load and stiffness. In the clinical setting, FiberWire™ may improve healing rates and avoid progressive extrusion of the meniscus after transtibial pull-out repair of posterior meniscus root tears.
评估四种不同缝合材料用于关节镜下经胫骨后半月板根部撕裂拉出修复的生物力学性能，特别关注半月板 - 缝合线界面。
使用40个新鲜冷冻的猪外侧半月板。后半月板根部采用标准化方式用简单缝线使用四种不同缝合材料进行缝合：A组，2号PDS™；B组，2号Ethibond™；C组，2号FiberWire™；D组，2毫米Fibertape™。半月板 - 缝合线构建体先进行循环加载，然后使用伺服液压材料试验机进行破坏载荷测试。
在循环加载过程中，与A组相比，D组在100、500和1000次循环后位移显著更高（p < 0.001，p = 0.001，p = 0.001），与B组相比，在100和500次循环后位移显著更高（p = 0.010和p = 0.045）。与A组相比，C组在100次循环后位移显著更高（p = 0.008）。D组观察到最高的最大载荷，与A组相比有显著差异（p = 0.013）。B组与A组相比刚度显著更高（p = 0.023），C组和D组与A组和B组相比刚度均显著更高（p < 0.001）。
在循环加载和破坏载荷测试中，所评估的缝合材料均未表现出明显优于其他材料的性能。基于本研究结果，FiberWire™可能是经胫骨后半月板根部撕裂拉出修复的首选缝合材料，因为在循环加载过程中位移相对较低，且最大载荷和刚度值较高。在临床环境中，FiberWire™可能提高愈合率，并避免经胫骨后半月板根部撕裂拉出修复后半月板的渐进性挤出。
