Analysis of complications after reconstruction of bone defects involving complete mandibular resection using finite element modelling

Onkologie
Jutta MarkwardtBernd Reitemeier

Abstract

In a retrospective study, risk factors for complications after the bridging of mandibular defects using reconstruction plates were reviewed. Especially the loosening of the plate-screw-mandible complex should be analyzed with a finite element model in order to reduce plate complications in future. We examined 60 patients who underwent a treatment with reconstruction plates after tumor resection during a period of 10 years. The problem of screw loosening was additionally reviewed by means of a finite element study, and a model for the loosening process was developed. Our postoperative examination showed that 26 patients suffered from complications that required an early removal of the plate. These complications were oral or extraoral plate exposures, the looseness of screws with or without plate displacement, and plate fractures. Thereby, we noticed that maxillary and mandibular areas of opposing teeth, the size of the mandible defect, and the crossing of the orofacial midline are all risk factors for plate complications. On the basis of the finite element model, a modified arrangement of the screws was derived. Hence, a new type of resection plate was established. By repositioning the screw holes along the long axis of the plat...Continue Reading

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Citations

Aug 30, 2013·Plastic and Reconstructive Surgery·Pooyan Sadr-EshkevariPeter Maurer
Oct 19, 2013·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Sang-Woon LeeSeong-Gon Kim
Dec 18, 2013·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Jutta MarkwardtBernd Reitemeier
Nov 6, 2013·International Journal of Surgery·J MarkwardtB Reitemeier
Dec 1, 2009·International Journal of Oral and Maxillofacial Surgery·R C W WongM A W Merkx
Nov 21, 2009·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Bee Tin GohPaul J W Stoelinga
Jun 19, 2013·Journal of Biomedical Materials Research. Part a·Jutta MarkwardtBernd Reitemeier
Oct 9, 2019·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Meric Bilgic Kucukguven, Murat Akkocaoğlu

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