ABSTRACT

Introduction: Tibial shaft fracture is a bone fracture most common length happened. The incidence of cruris fractures is increasing every year. There is various type choice in tibial shaft fracture therapy, includes reduction covered and immobilized with cast, plate - screw, intramedullary nails with reduction closed or open and technical fixation internal or external fixation. Study this aim for compare results biomechanics stability axial loading among technique internal plate-screw fixation and nails intramedullary (K-Nail) so could be prepared right action in fracture stabilization. Materials and Methods: This study is experimental in vitro based on nonprobability sampling with consecutive sampling technique. It carried out in the Laboratory Skills (skills lab) Faculty Medical Sebelas Maret University for installation K-Nail and plate-screw and in the laboratory Faculty of Engineering Sebelas Maret University for evaluation axial loading start from July - August 2022. The samples are bone tibia cows / bovines aged 20-24 months with long bone 35 – 40 cm, midshaft diameter ± 6 cm, weight bone 2000 gram and condition normal bovine leg bones. Beef tibia used total 32 tibial bones. Data analysis used is the Shapiro -Wilk test and analysis statistics used is an independent T-Test, analyzed with SPSS. Results: The results of the Independent T-Test test give p = 0.000 (p <0>Conclusion: There is a significant difference between the stability of the axial loading plate screw and the K-nail in tibial shaft fractures. K-nails have higher axial loading stability when compared to axial loading on plates screws.