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Materials (Basel). 2019 Sep 25;12(19). doi: 10.3390/ma12193122.

Forces Causing One-Millimeter Displacement of Bone Fragments of Condylar Base Fractures of the Mandible after Fixation by All Available Plate Designs.

Materials (Basel, Switzerland)

Marcin Kozakiewicz, Rafal Zieliński, Michał Krasowski, Jakub Okulski

Affiliations

  1. Department of Maxillofacial Surgery, Medical University of Lodz, 1st Gen. J. Hallera Pl., 90-647 Lodz, Poland. [email protected].
  2. Department of Maxillofacial Surgery, Medical University of Lodz, 1st Gen. J. Hallera Pl., 90-647 Lodz, Poland. [email protected].
  3. Material Science Laboratory, Medical University of Lodz, 251st Pomorska, 92-213 Lodz, Poland. [email protected].
  4. Department of Maxillofacial Surgery, Medical University of Lodz, 1st Gen. J. Hallera Pl., 90-647 Lodz, Poland. [email protected].

PMID: 31557809 PMCID: PMC6804126 DOI: 10.3390/ma12193122

Abstract

BACKGROUND: There has been no direct comparison of all existing plates dedicated for fracture osteosynthesis of mandibular condyle base until now. The aim of the study was to test mechanically all available designs of titanium plates on the market on polyurethane mandibles using an individually designed clamping system.

METHODS: Forces required for a 1 mm displacement of fixed fracture and incidents of screw loosening were recorded. Results indicated the best mechanical plates among all existing designs available.

RESULTS: It has occured that some of osseofixation plates should not be used any more, whereas some shape of the single plates are similar shape to two single plates shape are regarded as the best osseofixation method for condyle base fracture.

CONCLUSION: General observation is the bigger plate and more screws, the better rigid stable osteosynthesis of mandibular condyle base. 4 plates of current designs of total 30 tested series can be recommended for open rigid internal fixation of fractures of the base of the mandibular condyle. The rest of 26 existing plates should not be used in condylar base fractures.

Keywords: condyle base fracture; mandible; plate rigid fixation

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