牵张成骨术在下颌骨节段缺损修复中的应用

【作者】 李勇；

【导师】 田卫东；

【作者基本信息】 四川大学 ， 口腔颌面外科， 2003， 硕士

【摘要】 目的 探讨用山羊建立下颌骨节段缺损改良双点牵张成骨术修复的动物模型的可行性和优越性。 方法 选用山羊6支，单侧实验，通过自行研制的下颌节段缺损牵张器经口外途径建立一种传送盘二次牵引延长，修复下颌骨节段缺损的动物实验模型。 结果：6支山羊的单侧下颌骨12～16mm的缺损畸形被传送盘成功牵张延长修复，并被过度延长5mm左右。X光片见骨质钙化良好。 结论：山羊作为下颌骨缺损畸形牵张修复的实验动物，具有可行性和可重复性。更多还原

【Abstract】 Objective To establish an animal model in goats for modified bi-focal distraction osteogenesis in mandibular segmental defect reconstraction.Metheds six goats were used in this study,every extra-oral distractor was activated 7 days after transport plate was completed between the distal trump and the plate with teeth at a rate of 1mm/d for 12-16 days,then awaiting a cosolidation of 7days,activated it again between the transport plate and the medial trump.Results all the segmental mandibular defects were reconstructed at the distal of transport plates successfully with a extral lengthened 5mm at the medial transport plates and the medial trumps.X-ray and organ images confirm themConclusion goat is a good animal for developing an experimental model on study of modified bi-focal distractionosteogenesis in mandibular segmental defect reconstruction.更多还原