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A comparison of EFECE systems with tension band wiring for patella fracture fixation in cadavers.
Journal of Orthopaedic Surgery and Research ( IF 2.6 ) Pub Date : 2020-07-10 , DOI: 10.1186/s13018-020-01781-9
Emre Karadeniz 1 , Elif Nedret Keskinoz 2
Affiliation  

EFECE systems are newly defined internal fixation systems, which are suitable for patella fracture fixation. The aim of this study was to compare the fixation strength of EFECE Systems with tension band wiring for transverse patellar fracture simulation on fresh frozen cadaver models. Quadriceps tendon-patella-patellar tendon (QT-P-PT) complex was prepared from human cadavers. After simulation of a transverse patella fracture, in group 1, 5 patella were fixed with a pair of 1.2 mm EFECE wires and 4 EFECE devices. In group 2, 5 patella were fixed with a pair of 1.2 mm Kirschner wires (K-wire) and a cerclage wire according to the tension band technique. Using a testing device with custom-made jaws, increasing distraction force was applied to these QT-P-PT complexes. Extension of these complexes with the distraction forces was observed. The maximum distraction force and the elongation during maximum force were evaluated. After 5 experiments with the EFECE systems, there was no EFECE wire breakage or EFECE wire-EFECE device catching failure. The median maximum force was 740 N (720-810 N). During maximum distraction force the median extension was 2.5 mm (1.6-2.5 mm). After 5 experiments with the tension band technique, there was no K-wire breakage. The median maximum force was 330 N (240-510 N). During this maximum distraction force the median extension was 3.4 mm (2.2-3.8 mm). Based on the biomechanical advantages, patella fracture treatment with EFECE systems may constitute a reasonable alternative in the treatment of patella fractures.

中文翻译:

带有张力带布线的EFECE系统在尸体骨骨折固定中的比较。

EFECE系统是新定义的内部固定系统,适用于骨骨折固定。这项研究的目的是比较EFECE系统与张力带布线的固定强度,以在新鲜冷冻尸体模型上进行横向pa骨骨折模拟。股四头肌-pat骨-ella肌腱(QT-P-PT)复合体由人尸体制备而成。模拟simulation骨横向骨折后,在第1组中,用一对1.2 mm EFECE导线和4个EFECE装置固定5根5骨。在第2组中,根据张力带技术,用一对1.2毫米Kirschner线(K线)和环扎线固定5根骨。使用具有定制钳口的测试设备,将越来越大的牵引力应用于这些QT-P-PT复合体。观察到这些复合物随着分散力而扩展。评价最大牵引力和最大力时的伸长率。在使用EFECE系统进行5次实验后,没有出现EFECE导线断裂或EFECE导线-EFECE设备卡住的故障。中位最大力为740 N(720-810 N)。在最大牵引力期间,中位延伸为2.5毫米(1.6-2.5毫米)。在使用张力带技术进行5次实验后,没有发现K线断裂。中位最大力为330 N(240-510 N)。在此最大牵引力期间,中位延伸为3.4毫米(2.2-3.8毫米)。基于生物力学的优势,使用EFECE系统进行骨骨折治疗可能是pat骨骨折治疗的合理选择。没有EFECE导线断裂或EFECE导线-EFECE设备卡住故障。中位最大力为740 N(720-810 N)。在最大牵引力期间,中位延伸为2.5毫米(1.6-2.5毫米)。在使用张力带技术进行5次实验后,没有发现K线断裂。中位最大力为330 N(240-510 N)。在此最大牵引力期间,中位延伸为3.4毫米(2.2-3.8毫米)。基于生物力学的优势,使用EFECE系统进行骨骨折治疗可能是pat骨骨折治疗的合理选择。没有EFECE电线断裂或EFECE电线-EFECE设备卡住故障。中位最大力为740 N(720-810 N)。在最大牵引力期间,中位延伸为2.5毫米(1.6-2.5毫米)。在使用张力带技术进行5次实验后,没有发现K线断裂。中位最大力为330 N(240-510 N)。在此最大牵引力期间,中位延伸为3.4毫米(2.2-3.8毫米)。基于生物力学的优势,使用EFECE系统进行骨骨折治疗可能是pat骨骨折治疗的合理选择。中位最大力为330 N(240-510 N)。在最大的牵引力作用下,中位伸展度为3.4毫米(2.2-3.8毫米)。基于生物力学的优势,使用EFECE系统进行骨骨折治疗可能是pat骨骨折治疗的合理选择。中位最大力为330 N(240-510 N)。在此最大牵引力期间,中位延伸为3.4毫米(2.2-3.8毫米)。基于生物力学的优势,使用EFECE系统进行骨骨折治疗可能构成in骨骨折治疗的合理替代方案。
更新日期:2020-07-10
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