汉族青年女性下颌神经管的三维CT定位测量及临床应用-整形外科学专业论文.docxVIP

亟±丛童尘迨塞 亟±丛童尘迨塞 这鉴壹生童’睦E题建丝萱的三维要!庭拉型堇丛l监丛生旦 汉族青年女性下颌神经管的三维c T定位测量 及临床应用 中文摘要 按照东方的审美观点，女性应该具阴柔之美，温柔内向和美丽 娇小，“鹅蛋样”和“瓜子样”脸型往往更受人们崇尚和喜爱。因此， 在东方，特另Ⅱ是东亚各国，因下颌角肥大而要求整形的患者亦呈逐渐 增多趋势。下颌角截骨手术截骨范围过小及截骨线过于平直均可导致 该区域线条平直、生硬，下颌角的角度过大，有时在前部可形成“第二 下颌角”。截骨量过大可在下颌区出现明显的凹陷，损伤下齿槽神经 血管柬。对于正常下颌角形态及其与周围相关结构的比例关系的认识 和把握，是手术设计与安全操作的基础和关键。我们应用三维cT重 建技术，进行37例下颌神经管的定位测量，进行数据相关分析，旨 在为下颌角整形美容手术提供解剖学的依据，以指导术前截骨设计及 青年女性下颌角截骨整形的术中操作，从而减少手术中下牙槽神经血 管束损伤的发生率。我们应用此技术30例，无一例发生下颌神经管 损伤。此项研究为术中对下颔神经管的定位、防止损伤神经血管束提 供了较为科学、简便、切实可行的方法，获得较好的临床结果。 关键词： cT三维重建；下颌神经管：下颌角肥大；测量 亟±监塞笙监童 亟±监塞笙监童 逯筮直生窒丝：E筮控经笸的三丝￡!定拉冽量题蝤压应出 The 3-DCT measurement of the mandibular canal’s location in the mandibular body of the young women who are the Han nationality and it’S clinical application Abstract According to the oriental aesthetiC view，the women should be gentle and charming．The orient usually love the faces l ike egg or melon seeds．So，more and more women are searching for the plastic surgery to reduce the prominent mandibular angles．If the reductiona osteotomy is small or the osteotomy line iS straight，the lower mandibular margin may be vertical and the the angle iS 1arger．Sometimes，the second mandibu]ar angle may locate on the anterior mandibular part．If the osteotomy reseets the bone more than enough，the inferior alveolar nerve and vessel bundle may be injured．The hasic and key point to design and safe operat ion i S knowing the exact proportions of the structures located on the mandibular angle and body．We applied the CT scanning and 3-DCT reconstruction to locate and measure the mandibular canal，analyze the data on 37 young women patients．We applled the data to guide the pre—operative design and manipulation during operation to 30 patients who suffered from the Prominent Mandibular Angle．The aim was to decrease the possibility of the inferior alveolar 亟±监盔垡迨塞 亟±监盔垡迨塞 拯亟霞堡玄然E麴擅经筐艘三丝曼!定垃捌量丛蝤压应蒯 nerve and vessel bandle injury．We appl ied the technique to 30 patients，