Rohrich Rod J, Ghavami Ashkan, Lemmon Joshua A, Brown Spencer A
Dallas, Texas; and Beverly Hills, Calif. From the Department of Plastic Surgery, University of Texas Southwestern Medical Center, and private practice.
Plast Reconstr Surg. 2009 Mar;123(3):1050-1063. doi: 10.1097/PRS.0b013e31819c91b0.
Accurate preoperative planning combined with facial fat compartment augmentation can improve precision and balance in facial rejuvenation techniques. Understanding the concept of "facial shaping" with respect to symmetry and soft-tissue (fat) distribution preoperatively is critical to optimizing aesthetic outcomes in various face lift techniques.
A review of 822 consecutive face lifts performed from January of 1994 to June of 2007 by a single surgeon (R.J.R.) was conducted. From this database, randomly selected cohorts of 50 preoperative and postoperative photographs were critically analyzed by three plastic surgeons exclusive of the senior surgeon (R.J.R.). Three facial parameters were compared on each facial side: facial height, degree of malar deflation, and orbit size. Long-term improvement was evaluated to delineate factors contributing to success in creating an aesthetically balanced facial shape.
Asymmetry between the two facial sides was noted in every patient preoperatively with respect to the three study parameters and was improved postoperatively. There was no statistically significant interobserver bias in the evaluations (p < 0.005). Facial asymmetry dictated differential treatment of the superficial musculoaponeurotic system (SMAS) tissue between facial sides to achieve the desired youthful facial shape. The angle (vector) and extent of SMAS-stacking varied depending on the preoperative analysis. Similarly, the selection of SMAS-ectomy versus SMAS-stacking depended on the degree of malar deflation and resultant cheek fullness.
Proper preoperative analysis for evaluating facial shape should address (1) facial height, (2) facial width, and (3) overall distribution/location of facial fullness. This method of evaluating facial shape and symmetry is simple and reproducible, and can aid in formulating a comprehensive treatment plan.
精确的术前规划与面部脂肪间隔的增加相结合,可提高面部年轻化技术的精准度和平衡性。术前了解“面部塑形”在对称性和软组织(脂肪)分布方面的概念,对于优化各种面部提升技术的美学效果至关重要。
对1994年1月至2007年6月由同一位外科医生(R.J.R.)连续进行的822例面部提升手术进行回顾。从该数据库中,由三位整形外科医生(不包括资深外科医生R.J.R.)对随机选取的50组术前和术后照片进行严格分析。比较每侧面部的三个面部参数:面部高度、颧骨凹陷程度和眼眶大小。评估长期改善情况,以确定有助于塑造美学上平衡面部形状的成功因素。
每位患者术前两侧面部在三个研究参数方面均存在不对称,术后有所改善。评估中观察者间无统计学显著偏差(p < 0.005)。面部不对称决定了两侧面部浅表肌肉腱膜系统(SMAS)组织的不同处理方式,以实现理想的年轻面部形状。SMAS堆叠的角度(向量)和范围因术前分析而异。同样,SMAS切除术与SMAS堆叠术的选择取决于颧骨凹陷程度和由此产生的脸颊丰满度。
评估面部形状的适当术前分析应涉及(1)面部高度,(2)面部宽度,以及(3)面部丰满度的整体分布/位置。这种评估面部形状和对称性的方法简单且可重复,有助于制定全面的治疗计划。