• Spine · Apr 2017

    Anatomic Relationship Between Right Recurrent Laryngeal Nerve and Cervical Fascia and Its Application Significance in Anterior Cervical Spine Surgical Approach.

    • Jianlin Shan, Heng Jiang, Dajiang Ren, and Chongwei Wang.
    • Department of Orthorpaedics, Beijing General Hospital of PLA, Beijing, China.
    • Spine. 2017 Apr 15; 42 (8): E443-E447.

    Study DesignAn anatomic study of anterior cervical dissection of 42 embalmed cadavers.ObjectiveThe aim was to study the anatomic relationship between recurrent laryngeal nerve (RLN) and cervical fascia combined with the requirements in anterior cervical spine surgery (ACSS).Summary Of Background DataThere has been no systematic research about how to avoid RLN injury in anterior cervical spine surgical approach from the aspect of the anatomic relationship between RLN and cervical fascia.MethodsForty-two adult cadavers were dissected to observe the relationships between RLN and different cervical fascia layers.ResultsRLN pierced out the alar fascia from the inner edge of the carotid sheath in all cases, and the piercing position in 22 cases (52.4%) was located at the lower segment of T1. The enter point into visceral fascia of RLN was located at C7-T1 in 25 cases (59.5%). The middle layer of deep cervical fascia exhibited the most stable anatomic relationship with RLN at the carotid sheath confluence site. Pulling visceral sheath leftwards would significantly increase the RLN tension.ConclusionUsing the close and stable relationship between RLN and cervical fascia could help to avoid RLN injury in anterior cervical spine surgical approach.Level Of Evidence4.

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