Anatomy of the Superficial Venous Structures of the Neck: A Cadaveric Study to Guide Superficial Injections

BACKGROUND Minimally invasive aesthetic procedures of the neck are becoming more popular. However, anatomical studies on the venous structures of the neck in relation to these procedures are lacking. OBJECTIVE The aims of this study were to identify the locations and communication patterns of the anterior jugular vein and external jugular vein (AJV and EJV) and the communicating vein (CV) based on superficial anatomical landmarks and to determine dangerous areas for dermal filler injections into the neck. MATERIALS AND METHODS Thirty sides of the neck from Korean adult cadavers were dissected for this study. RESULTS Four anatomical variants were identified. In Type Ia, the CV ran along the anterior border of the sternocleidomastoid muscle (SCM) (33.4%); in Type Ib, a single vein was observed connecting the CV and the EJV at the level of laryngeal prominence (23.3%); in Type Ic, the CV proceeded separately from the medial side of the anterior border of the SCM (13.3%); and in Type II, the CV was absent while the EJV and AJV were observed (30%). CONCLUSION Given the 4 anatomical variants identified in this study, the authors recommend exerting caution when performing dermal filler injections approximately 10, 30, and 60 mm lateral to the midsagittal line to avoid iatrogenic side effects. Address correspondence and reprint requests to: Kyung-Seok Hu, DDS, PhD, Room 601, Department of Oral Biology, Yonsei University College of Dentistry 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea, or e-mail: hks318@yuhs.ac Supported by a faculty research grant of Yonsei University College of Dentistry (6-2016-0027). The authors have indicated no significant interest with commercial supporters. H.-J. Lee and S.-Y. Ryu have contributed equally to this work. © 2018 by the American Society for Dermatologic Surgery, Inc. Published by Wolters Kluwer Health, Inc. All rights reserved.

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