하악우각부 골절의 골내고정후 응력분포에 관한 3차원 유한요소법적 연구

• 영문명: The 3-d fem stress anaylsis of the internal fixation for the fracture of mandibular angle
• 발행기관: 대한구강악안면외과학회
• 저자명: 김용한(Yong Han Kim) 김명래(Myung Rae Kim) 최장우(Jang Woo Choi) 조규종(Gue Jong Joh)
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면외과학회지 제22권 제4호, 633~642쪽, 전체 10쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 1996.10.30

영문 초록

It has been considered that tension is developed onto the superior border(along the osteosynthesis line) and compression presents at the inferior border of the mandible when the occlusal load is applied at the two dimensional model of the fractured mandible. Therefore, the internal fixation with one miniplate on the external oblique ridge of the mandible insisted by Champy et ais. (1972) seemed to be adequate to stabilize the bone segments of the mandibular angle fractures. But many clinicians doubted that torque stress as well as compressive stress may be developed at the inferior border of 3-dimensional mandible during loading. Kroon et als(1991) reported that the torque stress must be controlled bv additional internal fixation to prevent torsion of the fraoments. This is an experimental design to study the stress distribution after the internal fixation with monocortical miniplates and additional devices. The 3-dimensional finite element measurement analysis was used with (1) one miniplate at the superior border(1MP), (2) two miniplates at the superior border and inferior border(2MP), and (3) one miniplate at the superior border and suspension wire-bridge at the inferior border(1MP-SW) The results are as following; (1) When the occlusal load is applied to the fractured posterior molar region, the stress distributions of 2MP and 1MP-SW are close to the unfractured model. (2) When the occlusal load is applied to fractured posterior molar region, the gap of displacement at the inferior border was more significant in 1MP than 2MP or 1MP-SW. (3) When the occlusal load is applied to un-fractured site, there are no differences in the stress distributions between 1MP, 2MP and 1MP-SW. (4) It can be concluded that the auxillary inferior suspension wiring is a good option in the management of mandibular angle fractures to resist the functional load and pevent the development of gap between the fractured segments.

목차

Abstract

I. 서론

II. 연구재료 및 연구방법

III. 연구성적

IV. 고찰

IV. 결론

참고문헌

키워드

Mandible Angle Fracture FEM Inferior suspension