Failure of Sternal Wires Depends on the Number of Turns And Plastic Deformation: Combined Experimental And Computational Approach

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F18%3A00005950" target="_blank" >RIV/46747885:24210/18:00005950 - isvavai.cz</a>

Alternative codes found

RIV/46747885:24410/18:00005950

Result on the web

<a href="http://dx.doi.org/10.1093/icvts/ivx425" target="_blank" >http://dx.doi.org/10.1093/icvts/ivx425</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/icvts/ivx425" target="_blank" >10.1093/icvts/ivx425</a>

Result language

angličtina

Original language name

Failure of Sternal Wires Depends on the Number of Turns And Plastic Deformation: Combined Experimental And Computational Approach

Original language description

The number of turns at the end of a wire closure is not described or discussed in any cardiosurgical guidelines. The hands-on experience of the surgeon plays a significant role. The aim of this work was to clarify the relationship between the number of turns of the suture and the resulting strength of the sternal fixation. The study was performed in 2 independent steps. The first step was a finite element simulation, where the stress and strain distribution of the sternal fixation was observed. The second step included the experimental set-up and the statistical evaluation of the results. Our study showed that the failure force rose linearly as the number of turns increased. The lowest average measured force was 370 N (3 turns); the highest was 430 N (7 turns). The failure modes were either untwisting of the wires or rupture of the closure, which is controlled by the number of turns. As the number of turns increases, superficial cracks can occur. Based on our results, the 5-turn option is the best solution for the closure. The failure force is still double the value reported in the literature, so there is a high safety margin for failure. The failure mode is untwisting; hence, no unexpected fracture can occur, and there is still an elastic core in the cross-section of the wire.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10610 - Biophysics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Interactive Cardiovascular and Thoracic Surgery

ISSN

1569-9293

e-ISSN

—

Volume of the periodical

26

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

777-782

UT code for WoS article

000432288000009

EID of the result in the Scopus database

2-s2.0-85047222868