Kim Byung Jun, Lim Jong Woo, Park Ji Hoon, Lee Yoon Ho
Department of Plastic and Reconstructive Surgery, Seoul National University College of Medicine, Seoul, Korea.
Arch Craniofac Surg. 2014 Aug;15(2):82-88. doi: 10.7181/acfs.2014.15.2.82. Epub 2014 Aug 14.
The chin shape and position is important in determining the general shape of the face, and augmentation genioplasty is performed alone or in combination with other aesthetic procedures. However, augmentation genioplasty using osteotomy is an invasive and complex procedure with the potential to damage mentalis muscle and mental nerve, to affect chin growth, and prolonged recovery. Our aim was to present our experience with a modified augmentation genioplasty procedure for hypoplastic chins using a Gore-Tex implant.
Two vertical slit incisions were made at the canine level to create a supraperiosteal pocket between the incisions, preserving the periosteum and mentalis muscle. Minimal sub-periosteal dissection was performed lateral to the incisions along the mandibular border. The both wings of implant were inserted under the periosteum to achieve a stable dual plane implantation.
In total, 47 patients underwent dual plane chin augmentation using a Gore-Tex implant between January 2008 and May 2013. The mean age at operation was 25.77 years (range, 15-55 years). There were 3 cases of infection; one patient was treated with antibiotics, the others underwent implant removal. Additionally, two patients complained of postoperative parasthesia that spontaneously improved without any additional treatment. Most patients were satisfied with the postoperative outcomes, and no chin growth problems were observed among the younger patients.
Dual plane Gore-Tex chin augmentation is a minimally-invasive operation that is simple and safe. All implants yielded satisfactory results with no significant complications such as mental nerve injury, lower lip incompetence, or chin growth limitation.
下巴的形状和位置对于确定面部的整体形态很重要，隆下巴手术可单独进行，也可与其他美容手术联合进行。然而，采用截骨术的隆下巴手术是一种侵入性且复杂的手术，有可能损伤颏肌和颏神经，影响下巴生长，并延长恢复时间。我们的目的是介绍我们使用戈尔特斯（Gore-Tex）植入物对发育不全的下巴进行改良隆下巴手术的经验。
在尖牙水平做两个垂直切口，在切口之间形成一个骨膜上间隙，保留骨膜和颏肌。沿着下颌骨边缘在切口外侧进行最小限度的骨膜下剥离。将植入物的两翼插入骨膜下，以实现稳定的双平面植入。
2008年1月至2013年5月期间，共有47例患者使用戈尔特斯植入物进行了双平面隆下巴手术。手术时的平均年龄为25.77岁（范围为15 - 55岁）。有3例感染；1例患者接受了抗生素治疗，其他患者取出了植入物。此外，2例患者抱怨术后感觉异常，未经任何额外治疗自行改善。大多数患者对术后效果满意，年轻患者中未观察到下巴生长问题。
双平面戈尔特斯隆下巴手术是一种微创、简单且安全的手术。所有植入物均取得了满意的效果，未出现诸如颏神经损伤、下唇功能不全或下巴生长受限等重大并发症。
