Li Dong, Xu Haisong, Xu Liang, Huang Xiaoxiang, Yuan Jie, Wei Min
From the Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
J Craniofac Surg. 2015 Mar;26(2):586-9. doi: 10.1097/SCS.0000000000001475.
An oval-shaped face is considered ideal in Chinese culture, which means not only narrow mid and low face but also appropriate proportion between them. Numerous surgical resections of the malar and mandibular angles began in the 1980s. The objective of this study was to investigate the facial proportion index before and after facial contour surgery. All 266 patients were subjected to L-shaped reduction malarplasty and reduction of mandibular angles with partial masseter muscle resection. All computed tomographic parameters (preoperative and 2 years postoperative) were conducted on facial morphometry to reveal the change of the facial proportion index of hard and soft tissue, respectively, such as the widest part of the mid face (WM), widest part of the lower face (WL), facial height (FH), WM/WL, WM/FH, and WL/FH. All patients were satisfied with the optimal outcome of the combined facial contour surgery. Morphometric analysis indicated that the ideal WM/WL ratio was 1.27 ± 0.1 (1.21 ± 0.09 preoperative) in hard tissue and 1.2 ± 0.12 (1.16 ± 0.12 preoperative) in soft tissue 2 years postoperatively. The combined facial contour surgery could acquire an ideal facial contour for Chinese patients. Furthermore, the relative proportion index can be referenced as the standard for preoperative design.
在中国文化中，椭圆形脸被认为是理想的脸型，这意味着不仅脸中部和下部窄，而且它们之间比例恰当。20世纪80年代开始了大量的颧骨和下颌角手术切除。本研究的目的是调查面部轮廓手术前后的面部比例指数。所有266例患者均接受了L形颧骨缩小成形术和下颌角缩小术并部分切除咬肌。所有计算机断层扫描参数（术前和术后2年）均用于面部形态测量，以分别揭示硬组织和软组织面部比例指数的变化，如脸中部最宽处（WM）、脸下部最宽处（WL）、面部高度（FH）、WM/WL、WM/FH和WL/FH。所有患者对联合面部轮廓手术的最佳效果均满意。形态测量分析表明，术后2年硬组织的理想WM/WL比值为1.27±0.1（术前为1.21±0.09），软组织为1.2±0.12（术前为1.16±0.12）。联合面部轮廓手术可为中国患者获得理想的面部轮廓。此外，相对比例指数可作为术前设计的标准参考。
