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Title: A Biomechanical Comparison of Three 1.5-mm Plate and Screw Configurations and a Single 2.0-mm Plate for Internal Fixation of a Mandibular Condylar Fracture
Contributor(s): Aquilina, Peter (author); Parr, William C H (author); Chamoli, Uphar (author); Wroe, Stephen  (author)orcid ; Clausen, Philip (author)
Publication Date: 2014
Open Access: Yes
DOI: 10.1055/s-0034-1375172Open Access Link
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Abstract: The most stable pattern of internal fixation for mandibular condyle fractures is an area of ongoing discussion. This study investigates the stability of three patterns of plate fixation using readily available, commercially pure titanium implants. Finite element models of a simulated mandibular condyle fracture were constructed. The completed models were heterogeneous in bone material properties, contained approximately 1.2 million elements and incorporated simulated jaw adducting musculature. Models were run assuming linear elasticity and isotropic material properties for bone. No human subjects were involved in this investigation. The stability of the simulated condylar fracture reduced with the different implant configurations, and the vonMises stresses of a 1.5-mm X-shaped plate, a 1.5-mm rectangular plate, and a 1.5-mm square plate (all Synthes (Synthes GmbH, Zuchwil, Switzerland) were compared. The 1.5-mm X plate was the most stable of the three 1.5-mm profile plate configurations examined and had comparable mechanical performance to a single 2.0-mm straight four-hole plate. This study does not support the use of rectangular or square plate patterns in the open reduction and internal fixation of mandibular condyle fractures. It does provide some support for the use of a 1.5-mm X plate to reduce condylar fractures in selected clinical cases.
Publication Type: Journal Article
Source of Publication: Craniomaxillofacial Trauma & Reconstruction, 7(3), p. 218-223
Publisher: Thieme Medical Publishers
Place of Publication: United States of America
ISSN: 1943-3883
Field of Research (FOR): 110601 Biomechanics
060807 Animal Structure and Function
Socio-Economic Outcome Codes: 970106 Expanding Knowledge in the Biological Sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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