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相关口腔诊所
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牵引成骨技术在肿瘤术后下颌骨重
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发表时间:2007-1-9 9:40:00
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更多保健方面的文章请到中国保健网>>
关键词:牵引术;功能性颌骨重建;牵引器
【摘要】 目的 探讨牵引成骨术在功能性颌骨重建中的应用。方法 使用3种不同类型的国产颌骨牵引器(2种是为颌骨不同类型重建而专门设计)及德国martin公司生产的垂直牵引器,共完成6例不同类型的颌骨缺失重建,其中2例升支大部切除,1例下颌骨体左侧缺失,3例分别为右侧及颏部保留下颌骨下缘的方块切除术后及下颌骨体左侧切除术后髂骨移植而骨量不足者。结果 5例按术前设计的要求顺利完成牵引成骨重建,1例因牵引器一侧固定臂螺钉从移动骨块上穿透仅完成一半缺失区(23 mm)的牵引成骨。全部病例均无感染、成骨不良等并发症。结论 牵引成骨技术可成功应用于功能性颌骨重建,较常规重建方法具有独特优势。不同类型的颌骨缺失重建皆可使用牵引成骨技术,最佳的牵引成骨时机是与肿瘤切除术同期进行。
application of distraction osteogenesis in functional mandibular reconstruction
wang xing, lin ye, yi biao, et al.
(school of stomatology, beijing medical university, beijing 100081,china)
【abstract】 objective to study the application of distraction osteogenesis in mandibular functional reconstruction.methods three kinds of mandibular distractors were used in 6 cases who had different mandibular defects because of tumor resection. for two cases with defect of most part of ramus specially desinged distractors were used in order to keep the normal height of the ramus. in one case the trifoci distraction principles were used and a trifoci distractor was desinged. in three cases the vertical distractors made in germany or china respectively were used. the average age of 6 patients was 31.5 years old (from 8 to 54).results the mandibular lengthenings in 5 cases were fully successful according to the direction and distance desinged before distraction. in one case the trifoci distraction principle was applied and a proximal 23 mm mandibular defect was corrected succesfully, however, the 23 mm distal mandibular defect had not corrected because the screws for fixation of the transport block was loosened. no infection and dysosteogenesis were happened in all cases.conclusions distraction osteogenesis can successfully be used in mandibular functional reconstruction and has much more adventages than traditional techniques. the most favorable time for distraction osteogenesis in mandibular reconstruction is at the same stage of tumor resection.
【key words】 traction; functional mandibular reconstruction; distractor
因肿瘤切除部分下颌骨是口腔颌面外科临床经常遇到的问题。颌骨重建修复的目的不仅为恢复颌骨的连续性、维持患者正常的容貌形态,而且是为了恢复患者的咀嚼、语言等正常生理功能,从而出现了功能性重建的新概念。这就为切除颌骨后的重建修复提出了更高的要求,移植的软硬组织都应满足功能性重建的基本要求。肿瘤外科临床工作中已采用了适合不同患者的多种重建方法[1-4],例如钛板钛钉固定+植骨、钛网塑型固定+游离植骨、多种复合组织瓣的血管化移植等。这些手术程序复杂,患者需经受供区手术的痛苦,且存在感染坏死的可能,另外局部的骨量多少、质地及其覆盖的软组织等情况都是功能性重建所面临的困难。
近年来国际上兴起的颌骨牵引成骨术已在颌骨缺失重建的动物实验及初步临床研究中获得成功,提示了这一技术应用于临床的可能性[5-8]。我们自1999年初应用这一技术对6例不同类型的下颌骨部分缺失患者进行了牵引成骨重建并获成功,现报告如下。本新闻共3页,当前在第1页123
责任编辑:姚红祥
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