Zdilla Matthew J, Swearingen Jordan V, Miller Kyle D, Bender-Heine Adam, Lambert H Wayne
*Department of Natural Sciences and Mathematics, West Liberty University †Department of Graduate Health Sciences, West Liberty University, West Liberty ‡Department of Neurobiology and Anatomy, West Virginia University School of Medicine, Morgantown §Department of Otolaryngology, West Virginia University School of Medicine, Morgantown, WV.
J Craniofac Surg. 2017 Mar;28(2):534-538. doi: 10.1097/SCS.0000000000003333.
The anterior belly of the digastric muscle (ABDM) is important in numerous esthetic surgeries including rhytidectomy, alteration of the cervicomental angle via partial resection of the ABDM muscle belly, and suprahyoid muscular medialization and suspension. Recently, the connection between the ABDM and the mylohyoid muscle (MH) has been proposed as important for the mechanism of the digastric corset procedure. This report refers to the connection between the ABDM and the MH as a type of retaining ligament of the anterior digastric muscle (RLAD). This report is the first to directly demonstrate the existence of the RLAD, via photograph and video, and document variation in its attachment sites, its composition, and its behavior when traction forces are applied. In addition to the importance of the RLAD in plastic surgery, the RLAD may affect neurovascular structures between the ABDM and MH and serve as a physical barrier separating the submental fascial space from the submandibular fascial space and, therefore, influence the spread of infection.
二腹肌前腹（ABDM）在众多美容手术中都很重要，包括除皱术、通过部分切除ABDM肌腹改变颈颌角，以及舌骨上肌群内移和悬吊。最近，有人提出ABDM与下颌舌骨肌（MH）之间的连接对于二腹肌束带手术的机制很重要。本报告将ABDM与MH之间的连接称为二腹肌前肌保留韧带（RLAD）。本报告首次通过照片和视频直接证明了RLAD的存在，并记录了其附着部位、组成以及施加牵引力时的行为变化。除了RLAD在整形手术中的重要性外，RLAD可能会影响ABDM和MH之间的神经血管结构，并作为将颏下筋膜间隙与下颌下筋膜间隙分隔开的物理屏障，因此会影响感染的扩散。
