ISSN : 1301-5680
e-ISSN : 2149-8156
Turkish Journal of Thoracic and Cardiovascular Surgery     
Experimental comparison of efficiency of four different sternum closure techniques
Süleyman Nazif Orhan1, Mehmet Hamit Özyazıcıoğlu2, Abdurrahim Çolak3
1Erzurum Teknik Üniversitesi, İnşaat Mühendisliği Bölümü, Erzurum, Türkiye
2Atatürk Üniversitesi, İnşaat Mühendisliği, Erzurum, Türkiye
3Atatürk Üniversitesi Tıp Fakültesi Kalp ve Damar Cerrahisi Anabilim Dalı, Erzurum, Türkiye
DOI : 10.5606/tgkdc.dergisi.2017.14266
Background: This study aims to compare experimentally the efficiency of four different sternal closure techniques performed using steel wire, steel cable, titanium clips and titanium plates.

Methods: In the experiments, during which artificial sternum models were used, static loadings were performed to create lateral distraction, longitudinal shear and transverse shear in the models. The methods were compared considering their allowable load (load corresponding to 2 mm displacement) and stiffness values. The costs, and ease and speed of application of the methods were also evaluated.

Results: Although the highest allowable load and stiffness values in lateral distraction were obtained in the titanium clips method, the differences in allowable load and stiffness of all methods were not statistically significant. Although the highest allowable load in longitudinal shear was obtained in the titanium plate method, the only statistical significance in allowable loads was between the steel cable method and other methods. While the highest stiffness value in this loading was obtained in the titanium clips method, the difference between this method and conventional wire methods was not statistically significant. The highest allowable load and stiffness values in transverse shear were obtained in the titanium clips method and the differences between this method and other methods were statistically significant. When the costs, and ease and speed of application of the methods were considered, the most advantageous method was the conventional steel wire method.

Conclusion: According to the results of our experiments, titanium clips displayed more stable behaviour and provided better sternal closure compared to the other methods.

Keywords : Biomechanics; median sternotomy; sternum closure methods
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