Please use this identifier to cite or link to this item: http://hdl.handle.net/11452/34406
Title: Understanding the causes behind coracoid graft osteolysis in latarjet procedure (finite element analysis and comparison of three fixation methods)
Authors: Moussa, Abdellah Ait
Khandaker, Morshed
Akdağ, Gökhan
Uludağ Üniversitesi/Tıp Fakültesi/Ortopedi ve Travmatoloji Anabilim Dalı.
Uludağ Üniversitesi/Mühendislik Fakültesi/Makine Mühendisliği Bölümü.
0000-0003-3772-7871
0000-0001-8474-7328
0000-0003-4203-8237
Alp, Nazmi Bülent
Yılmaz, Tufan Gürkan
Kalay, Onur Can
Karpat, Fatih
Doğan, Oğuz
DXD-5241-2022
V-6153-2017
GDQ-4936-2022
A-5259-2018
AAV-7897-2020
57195293117
57194528723
55807371600
24366799400
7006415878
Keywords: Orthopedics
Surgery
Endobutton
Latarjet
Osteolysis
Finite element analysis
Wedge plate
Issue Date: Feb-2020
Publisher: Elsevier
Citation: Alp, N. B. vd. (2020). "Understanding the causes behind coracoid graft osteolysis in latarjet procedure (finite element analysis and comparison of three fixation methods)".Orthopaedics and Traumatology: Surgery and Research, 106(1), 53-59.
Abstract: Background: Latarjet is one of the most common surgical procedure performed on patients with shoulder instability with osseous defects, some complications include coracoid bone graft osteolysis, osteoarthritis, graft detachment, and malpositioning were previously reported. Several studies investigated potential causes of graft osteolysis but still, it remains a crucial area of investigation. We aim to use finite element analysis to examine the potential correlations between three modes of fixation methods used in the Latarjet procedure (screw, wedge plate, and endobutton), and the coracoid graft osteolysis. Hypothesis: Finite element analysis tested the hypothesis that there is a linear relationship between the compression stress on graft which was generated by fixation methods used in the latarjet and the coracoid graft osteolysis. Material and methods: Boundary conditions and inhomogeneous material properties were carefully assigned within the material of the scapula and coracoid interface. For the screw and wedge plate fixations, an applied torque in the range of 1-1.5 Nm was used to characterize the surgeon's insertion torque during the surgical operation, while a 100 N compressive force was selected for the endobutton fixation. Results: Relatively lesser stress magnitudes were observed with endobutton fixation method rather than screw and the wedge plate fixation. Statistical analyses revealed significant differences between the groups (p<0.05). Discussion: Excessive compressive stresses within the coracoid graft regions may be responsible for osteolysis due to negative effects over biological factors such as blood flow. Our study emphasizes the importance of taking into account the fixation method while performing the Latarjet procedure. We concluded that the mode of fixation used within the Latarjet procedure has a correlation on the coracoid graft osteolysis.
URI: https://www.sciencedirect.com/science/article/pii/S1877056819303822
https://doi.org/10.1016/j.otsr.2019.11.007
http://hdl.handle.net/11452/34406
ISSN: 1877-0568
Appears in Collections:Scopus
Web of Science

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