PSI - Issue 47

ScienceDirect Structural Integrity Procedia 00 (2022) 000–000 Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 47 (2023) 945–951

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons Abstract Four options for the location of the internal rods in the rod apparatus of external fixation (RAEF) were considered. A CAD/CAE model of the "RAEF" system was created. The finite element method of loading the system for compression, bending in the plane of the arrangement of the rods, bending perpendicular to the plane of the arrangement of the rods and torsion is simulated. The stiffness of the system with four options for the location of the rods is compared. It was established that the stiffness of the "RAEF" system depends on the distance between the internal rods and their angle to the axis of the bone. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) 1. Introduction In case of gunshot bone injuries, the primary method of surgical treatment is osteosynthesis with the help of a rod apparatus of external fixation (RAEF). The advantages of fixation with this device are ease of wound care, patient mobility, shorter hospital stay and relative ease of installation, which is why RAEF is also used in field surgery. In Ukraine, it has become widely used due to the large number of wounded who need to quickly immobilize a broken bone for transportation to medical care facilities. However, using the RAEF according to the standard scheme of bone Abstract Four options for the location of the internal rods in the rod apparatus of external fixation (RAEF) were considered. A CAD/CAE model of the "RAEF" system was created. The finite element method of loading the system for compression, bending in the plane of the arrangement of the rods, bending perpendicular to the plane of the arrangement of the rods and torsion is simulated. The stiffness of the system with four options for the location of the rods is compared. It was established that the stiffness of the "RAEF" system depends on the distance between the internal rods and their angle to the axis of the bone. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons Keywords: Fiery fracture, Finite element model, Bone, Fixation device 1. Introduction In case of gunshot bone injuries, the primary method of surgical treatment is osteosynthesis with the help of a rod apparatus of external fixation (RAEF). The advantages of fixation with this device are ease of wound care, patient mobility, shorter hospital stay and relative ease of installation, which is why RAEF is also used in field surgery. In Ukraine, it has become widely used due to the large number of wounded who need to quickly immobilize a broken bone for transportation to medical care facilities. However, using the RAEF according to the standard scheme of bone 27th International Conference on Fracture and Structural Integrity (IGF27) Development of a finite element model for optimization of the bone fixator design Duc Quan Pham a , Olexiy Sulyma b , Olha Musiienko a *, Oleksii Morhun a , Roman Didenko a a National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37, Prosp. Peremohy, Kyiv, 03056, Ukraine b Institute of Traumatology and Orthopedics, AMS of Ukraine NAMS of Ukraine, 27, Boulevard-Kudryavskaya, Kyiv, 01601, Ukraine 27th International Conference on Fracture and Structural Integrity (IGF27) Development of a finite element model for optimization of the bone fixator design Duc Quan Pham a , Olexiy Sulyma b , Olha Musiienko a *, Oleksii Morhun a , Roman Didenko a a National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37, Prosp. Peremohy, Kyiv, 03056, Ukraine b Institute of Traumatology and Orthopedics, AMS of Ukraine NAMS of Ukraine, 27, Boulevard-Kudryavskaya, Kyiv, 01601, Ukraine Peer-review under responsibility of the IGF27 chairpersons Keywords: Fiery fracture, Finite element model, Bone, Fixation device

* Corresponding author. Tel.: +38-098-712-3509; fax: +38-044-204-9536. E-mail address: o.musiienko@kpi.ua * Corresponding author. Tel.: +38-098-712-3509; fax: +38-044-204-9536. E-mail address: o.musiienko@kpi.ua

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons 2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons 10.1016/j.prostr.2023.07.026