Archives of Craniofacial Surgery (대한두개안면성형외과학회지)

Korean Cleft Palate-Craniofacial Association (대한두개안면성형외과학회)
권호 표지

Study of the Plating Methods in the Experimental Model of Mandibular Subcondyle Fracture

하악골 과두하부 골절 실험모델에서 견고정을 위한 플레이트 고정방법 연구

  • Lee, Won (Department of Plastic and Reconstructive Surgery, College of Medicine, Dankook University) ;
  • Kang, Dong Hee (Department of Plastic and Reconstructive Surgery, College of Medicine, Dankook University)
  • 이원 (단국대학교 의과대학 성형외과학교실) ;
  • 강동희 (단국대학교 의과대학 성형외과학교실)
  • Received : 2010.12.31
  • Accepted : 2011.03.01
  • Published : 2011.04.10
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Abstract

Purpose: This study examined the biomechanical stability of four different plating techniques in the experimental model of mandibular subcondyle fracture. Methods: Twenty standardized bovine tibia bone samples ($7{\times}1.5{\times}1.0cm$) were used for this study. Each of the four sets of tibia bone was cut to mimic a perpendicular subcondyle fracture in the center area. The osteotomized tibia bone was fixed using one of four different fixation groups (A,B,C,D). The fixation systems included single 2.0 mm 4 hole mini adaption plate (A), single 2.0 mm 4 hole dynamic compression miniplate (B), double fixation with 2.0 mm 4 hole mini adaption plate (C), double fixation with a 2.0 mm 4 hole mini adaption plate and 2.0 mm 4 hole dynamic compression miniplate (D). A bending force was applied to the experimental model using a pressure machine (858 table top system, $MTS^{(R)}$) until failure occurred. The load for permanent deformation, maximum load of failure were measured in the load displacement curve with the chart recorder. Results: Double fixation with a 2.0 mm 4 hole mini adaption plate and a 2.0 mm 4 hole dynamic compression miniplate (D) applied to the anterior and posterior regions of the subcondyle experimental model showed the highest load to failure. Conclusion: From this study, double fixation with an adaption plate and dynamic compression miniplate fixation technique produced the greatest biomechanical stability. This technique may be considered a useful means of fixation to reduce the postoperative internal maxillary fixation period and achieve early mobility of the jaw.

Keywords

Acknowledgement

Supported by : 단국대학교

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