Biomechanical Evaluation of Different Fixation Methods for Mandibular Anterior Segmental Osteotomy Using Finite Element Analysis, Part One: Superior Repositioning Surgery

KILINÇ Y., ERKMEN E., Kurt A.

JOURNAL OF CRANIOFACIAL SURGERY, cilt.27, sa.1, ss.32-35, 2016 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 1
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1097/scs.0000000000002172
  • Dergi Adı: JOURNAL OF CRANIOFACIAL SURGERY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.32-35
  • Anahtar Kelimeler: Biomechanics, finite element analysis, jaw fixation techniques, mandible, mandibular osteotomy, SPLIT RAMUS OSTEOTOMY, ADVANCEMENT SURGERY, STRESS-DISTRIBUTION
  • Gazi Üniversitesi Adresli: Evet

Özet

The aim of the current study was to comparatively evaluate the mechanical behavior of 3 different fixation methods following various amounts of superior repositioning of mandibular anterior segment. In this study, 3 different rigid fixation configurations comprising double right L, double left L, or double I miniplates with monocortical screws were compared under vertical, horizontal, and oblique load conditions by means of finite element analysis. A three-dimensional finite element model of a fully dentate mandible was generated. A 3 and 5mm superior repositioning of mandibular anterior segmental osteotomy were simulated. Three different finite element models corresponding to different fixation configurations were created for each superior repositioning. The von Mises stress values on fixation appliances and principal maximum stresses (P-max) on bony structures were predicted by finite element analysis. The results have demonstrated that double right L configuration provides better stability with less stress fields in comparison with other fixation configurations used in this study.