Biomechanical testing of different osteosynthesis systems for segmental resection of the mandible

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
Wiebke SchuppRalf Gutwald

Abstract

This investigation assessed the mechanical behavior of 3 different locking and nonlocking reconstruction systems-Unilock 2.4, Reconstruction 2.4, and Reconstruction 2.7-with regard to plate and screw fracture. Five different plate/screw configurations (Unilock 2.4-locking screws, Unilock 2.4 -conventional screws, Reconstruction 2.4-conventional screws, Reconstruction 2.7-conventional screws, and Unilock 2.4-locking screws with a 1-mm gap; Synthes, Umkirch, Germany) were tested on synthetic mandibles. All mandibles were resected on the left side between the canine and third molar, reconstructed, and loaded cyclically between 30 and 300 N up to 250,000 cycles or until screw or plate failure occurred. No screw fractures were observed. All plates fractured close to the distal fragment. The Unilock plates fixed with locking screws withstood significantly more cycles until failure than the Reconstruction plates 2.4 fixed with conventional MF-Cortex screws. No significant differences were found in the other groups. Only 2 of the 34 plates tested, both of the Reconstruction 2.7 system, reached the runout limit. Unilock plates fixed with locking screws have a higher long-term stability than the Reconstruction 2.4 system. A 1-mm gap betw...Continue Reading

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Citations

Apr 2, 2013·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Peng LiWei Tang
Sep 17, 2013·The Journal of Craniofacial Surgery·Rodrigo Dos Santos PereiraNicolas Homsi
May 21, 2011·Veterinary and Comparative Orthopaedics and Traumatology : V.C.O.T·R StreubelT Guerrero
Jan 29, 2014·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Péter BujtárC M E Avery
Feb 11, 2014·International Journal of Oral and Maxillofacial Surgery·N ChanchareonsookJ A Jansen
Sep 10, 2013·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Jaime GatenoJames J Xia
Aug 8, 2012·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Florian Andreas ProbstMarc Christian Metzger
Aug 9, 2012·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Zachary S PeacockLeonard B Kaban
Jan 5, 2011·International Journal of Oral and Maxillofacial Surgery·R C W WongK Liao
Nov 26, 2010·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Marc C MetzgerStefan Schlager
Mar 30, 2010·Revue de stomatologie et de chirurgie maxillo-faciale·J YachouhP Goudot
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Jan 22, 2009·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Chanchai WongchuensoontornSebastian Sauerbier
Jun 9, 2016·Computer Methods in Biomechanics and Biomedical Engineering·Stefan RaithHorst Fischer
Dec 24, 2013·The Open Biomedical Engineering Journal·Constantin LandesRaimund Jaeger
Nov 27, 2016·Computer Methods in Biomechanics and Biomedical Engineering·Ralf GutwaldFloor M Lambers
Nov 9, 2020·Journal of Stomatology, Oral and Maxillofacial Surgery·G MuftuogluP Aydin

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