摘要
目的:应用CT三维重建来探讨双侧下颌骨矢状劈开截骨术舌侧水平截骨线与骨劈开效果的关系,为下颌骨矢状劈开截骨术舌侧水平截骨位置的选择提供指导。方法:选择17例双侧下颌骨前突患者(34例),经过下颌骨矢状劈开截骨术,术后应用三维重建观测水平截骨线及劈开效果。结果:只有10.87%的劈开结果理想(符合Hunsuck描述),54.35%的劈开效果较理想,32.61%的穿过了下颌管,4.35%穿过了其它部位。劈开的效果直接受水平截骨位置的影响(P<0.01)。结论:三维CT在评价下颌骨矢状劈开截骨术效果方面是有效的工具,为下颌骨矢状劈开截骨术选择舌侧水平截骨线位置提供重要数据,并能降低不良劈开的发生率。
Objective： In order to select the best position of lingual fracture line in bilateral sagittal split osteotomy （BSSRO）, we use three-dimensional （3D） reconstruction to evaluate the relationship of lingual fracture line and split pattern. Method： 17 patients （34 splits）with osteal bimaxillary protrusion were corrected undergo BSSO, the postoperative 3D recon- struction was used to analyze the length of medial osteotomy and the outcome of split. Result： only 10.87 % of the fracture lines run according to the ttunsuck＇s description, 54.35 % can be accepted in chnical,whereas 32.61% ran through the mandibular canal and 4.35 % split otherwise. The split pattern was influenced by the position of lingual fracture line （P 〈 0.01）. Conclusion： 3D imaging is a useful tool for analyzing the surgical outcome of a BSSRO and has the potential to pro- vide substantial data on the position of the proximal segments as a result of the lingual fracture line, and then reduce the rate of unfavorable split.
出处
《临床口腔医学杂志》
2012年第1期20-22,共3页
Journal of Clinical Stomatology
基金
辽宁省科技厅科学技术计划项目(2010225036)
关键词
双侧下颌骨矢状劈开截骨术
舌侧水平截骨线
三维重建
bilateral sagittal split osteotomy （BSSRO）
lingual fracture line
three-dimensional reconstruction
