下颌骨和下巴整块 U 形截骨术用于矫正下颌角突出和长下巴。,The Journal of Craniofacial Surgery

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下颌骨和下巴整块 U 形截骨术用于矫正下颌角突出和长下巴。
The Journal of Craniofacial Surgery ( IF 1.0 ) Pub Date : 2019-07-01 , DOI: 10.1097/scs.0000000000005126
Chenzhi Lai ₁ , Xiaolei Jin , Xianlei Zong , Guodong Song

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背景技术下脸轮廓手术已成为东亚国家流行的美容手术。已使用各种手术方法来改善下面部的美观。当患者的下脸又宽又长时，传统上会进行下巴抛光或T型截骨术等手术，但这些手术方法有几个缺点。作者设计了一种简单可靠的方法来矫正宽而长的下脸，没有传统方法带来的并发症。方法 2015年7月至2018年1月，对30例下颌角突出、下巴过长、无错牙合畸形患者行口腔切口整块下颌U型截骨术，以缩短下颌角、下颌体、缩短下颌角、下颌骨长度。下巴，改善面部轮廓。作者通过比较术前和术后X光片、患者满意度以及术后期间的手术并发症来评估手术的有效性。结果所有口腔切口均一期愈合，未出现血肿、感染、骨坏死。16例患者出现下唇麻木。6至12个月后，所有患者的麻木感均完全恢复。所有患者均对手术后的外观感到满意。结论整块下颌U形截骨术是下颌手术的一种改进形式。截骨线涉及整个下颌骨，使下颌骨的长度和宽度大大缩小。这项手术可以有效矫正下颌角突出、下巴过长的问题。

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En-Bloc U-Shaped Osteotomy of the Mandible and Chin for the Correction of a Prominent Mandibular Angle With Long Chin.

BACKGROUND Lower face contouring surgery has become a popular aesthetic surgery in East Asian countries. Various surgical methods have been used to improve lower face aesthetics. When a patient has a wide as well as long lower face, procedures like chin polishing or T-type osteotomy are traditionally performed, but these surgical methods have several disadvantages. The authors devised a simple and reliable method to correct the wide and long lower face, without the complications associated with the traditional methods. METHODS From July 2015 to January 2018, 30 patients with a prominent mandibular angle, long chin, and no malocclusion underwent en-bloc mandibular U-shaped osteotomy through an oral incision, in order to shorten the mandibular angle, body of the mandible, and the chin, and to improve the facial contour. The authors assessed the effectiveness of surgery through comparisons between pre- and postoperative radiographs, patient satisfaction, and surgical complications in the postoperative period. RESULTS It was observed that all oral incisions healed by primary intention, and did not develop hematoma, infection, or osteonecrosis. Lower lip numbness occurred in 16 patients. After 6 to 12 months, all patients showed complete recovery from the numbness. All the patients were satisfied with their appearance after surgery. CONCLUSIONS En-bloc mandibular U-shaped osteotomy is an improved form of mandibular surgery. The osteotomy line involves the whole mandible, which makes the length and width of the mandible considerably smaller. This surgery can effectively correct a prominent mandibular angle with long chin.

更新日期：2019-11-01

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