Anatomical considerations of the recurrent laryngeal nerve and it´s vulnerability during surgical procedures of the neck
EANS Academy. Fahim D. 09/27/19; 276088; EP11011
Dr. Daniel Fahim
Dr. Daniel Fahim

Access to this content is reserved for EANS members and attendees of this event. Click here to become an EANS member and gain your access to the full content of the EANS Academy

Discussion Forum (0)
Rate & Comment (0)
Introduction: Accurate knowledge of anatomical variability of the recurrent laryngeal nerve (RLN) provides information for preventing iatrogenic injury, improving patient safety, optimizing clinical outcomes, and ultimately guiding best clinical and surgical practices. The present study aims to assess the potential anatomical variations of the RLN pertaining to its course, branching pattern, and relationship to the inferior thyroid artery, which potentially makes it vulnerable to injury, compression, or stretch during surgery of the neck. Variations of the RLN will be investigated together with side preference considerations.
Methods: The study was done on 55 formalin-fixed cadavers used for dissection at Oakland University William Beaumont School of Medicine between 2016-2018. Following careful dissection and critical observation, cadavers with anatomical variations were photographed and the data was analyzed quantitatively and in a descriptive way.
Results: Our findings indicate that extralaryngeal branches coming off of the RLN on both the right and left side innervate the esophagus, trachea, and intrinsic laryngeal muscles. On the right side, 89.1% of the cadavers demonstrated 2-5 extralaryngeal branches. On the left side, 74.6% of the cadavers demonstrated 2-3 extralaryngeal branches. In relation to the inferior thyroid artery, 67.9% of right RLN's were related anteriorly, while 32.1% were related posteriorly. On the other hand, 32.1% of left RLN's were anterior to the inferior thyroid artery, while 67.9% were posterior. On both sides 3-5% of RLN's crossed between branches of inferior thyroid artery. These findings demonstrate a significant amount of variations in the course and branching pattern of the RLN.
Conclusion: Anatomical consideration of these variations is essential to minimize complications associated with surgical procedures of the neck, especially anterior cervical spine surgery and thyroidectomies. The information gained in this study emphasizes the need for special considerations during surgical procedures, and side preferences in preserving the extralaryngeal branches of the RLN.
Code of conduct/disclaimer available in General Terms & Conditions
Anonymous User Privacy Preferences

Strictly Necessary Cookies (Always Active)

MULTILEARNING platforms and tools hereinafter referred as “MLG SOFTWARE” are provided to you as pure educational platforms/services requiring cookies to operate. In the case of the MLG SOFTWARE, cookies are essential for the Platform to function properly for the provision of education. If these cookies are disabled, a large subset of the functionality provided by the Platform will either be unavailable or cease to work as expected. The MLG SOFTWARE do not capture non-essential activities such as menu items and listings you click on or pages viewed.

Performance Cookies

Performance cookies are used to analyse how visitors use a website in order to provide a better user experience.

Google Analytics is used for user behavior tracking/reporting. Google Analytics works in parallel and independently from MLG’s features. Google Analytics relies on cookies and these cookies can be used by Google to track users across different platforms/services.

Save Settings