Lorenc Z Paul, Corduff Niamh, van Loghem Jani, Yoelin Steve
Aesthet Surg J Open Forum. 2022 May 2;4:ojac034. doi: 10.1093/asjof/ojac034. eCollection 2022.
Relaxation of depressor muscles in the lower face with botulinum toxin A (BoNT-A) can create a lifting effect and dramatically improve jawline contour and resting facial expression. Even with the recent increase in interest in lower face rejuvenation, BoNT-A is a relatively under-recognized tool for treatment of this area. When treating the lower face, an understanding of anatomy and the relationship between the facial muscles is especially important, as injection patterns must be customized for consistently positive outcomes.
This study was aimed to provide basic knowledge of the activities of the muscles in the lower face and neck and to describe the basis for injecting BoNT-A to create lift in this area. Expert guidance for injection is also provided.
As part of a continuing medical education course on differentiating botulinum toxin products, a panel of 4 expert physician injectors participated in a live webinar to discuss the implications of increasing toxin use.
The practical guidance in this manuscript is based on the most frequently requested information by audience members and the information considered critical for success by the authors. The authors outline the functional anatomy of the lower face most relevant for BoNT-A treatment and case studies as well as methods for patient evaluation and injection technique are also provided. Videos showing treatment planning and injection technique for the lower face and neck are included.
BoNT-A is an important nonsurgical tool for creating lift in the lower face.
使用A型肉毒毒素（BoNT-A）放松下脸部的降肌可产生提升效果，并显著改善下颌轮廓和静态面部表情。尽管近期人们对下脸部年轻化的兴趣有所增加，但BoNT-A仍是该区域治疗中一种相对未得到充分认识的工具。在治疗下脸部时，了解解剖结构以及面部肌肉之间的关系尤为重要，因为必须定制注射模式才能持续获得积极效果。
本研究旨在提供下脸部和颈部肌肉活动的基础知识，并描述注射BoNT-A以在该区域产生提升效果的依据。还提供了注射的专家指导。
作为关于区分肉毒毒素产品的继续医学教育课程的一部分，一个由4名专家医生注射师组成的小组参加了一次现场网络研讨会，讨论增加毒素使用的影响。
本手稿中的实用指导基于观众最常要求的信息以及作者认为对成功至关重要的信息。作者概述了与BoNT-A治疗最相关的下脸部功能解剖结构，并提供了案例研究以及患者评估方法和注射技术。还包括展示下脸部和颈部治疗计划及注射技术的视频。
BoNT-A是在下脸部产生提升效果的重要非手术工具。
