한국CDE학회논문집 (Korean Journal of Computational Design and Engineering)

  • 제21권3호
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  • Pages.234-241
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  • 2016
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  • 2508-4003(pISSN)
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  • 2508-402X(eISSN)
한국CDE학회 (Society for Computational Design and Engineering)
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플레이트의 소성변형 과정이 재건술에서 플레이트 안정성에 미치는 영향

On the Stability of the Permanently Bent Mini-plate in Reconstructive Surgery

  • 박시명 (한국과학기술연구원 의공학연구소 바이오닉스연구단) ;
  • 이득희 (한국과학기술연구원 의공학연구소 바이오닉스연구단) ;
  • 노건우 (한국과학기술연구원 의공학연구소 바이오닉스연구단)
  • Park, Si Myung (Center for Bionics, Biomedical Research Institute, Korea Institute of Science and Technology(KIST)) ;
  • Lee, Deukhee (Center for Bionics, Biomedical Research Institute, Korea Institute of Science and Technology(KIST)) ;
  • Noh, Gunwoo (Center for Bionics, Biomedical Research Institute, Korea Institute of Science and Technology(KIST))
  • 투고 : 2016.02.12
  • 심사 : 2016.04.20
  • 발행 : 2016.09.01
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초록

Conventional bent plate used in mandibular reconstruction surgery needs safety verification since its mechanical properties are changed due to the plastic deformation during the bending process. In this study we investigate stability of the plastically deformed plate and the plate with the same shape without plastic deformation through the finite element analysis(FEA). First we simulate the process of plate bending to fit the defect in patient. Then, the other plate is modelled to represent a customized plate with the same shape of the plastically deformed one, but without any residual stresses from plastic deformation. After binding these plates to the mandible, we conduct the masticatory simulation. Finally, we compare the resulting Von Mises stress of the customized plate and of the bent plate. The bent plate shows much higher stress than the customized one due to the residual stresses form the bending process. The study shows that plastic deformation in the plate may decrease the safety of the reconstruction surgery.

키워드

참고문헌

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