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An Improved and Simplified Approach to Identify the Facial Nerve During Parotid Surgery.

Precise identification and preservation of the facial nerve is mandatory to avoid dysfunction of the facial nerve during parotidectomy. In this article, the authors are introducing a new landmark to identify the facial nerve for parotidectomy that is more protective for the facial nerve. The authors use a simple approach to predict the position of facial nerve main trunk intraoperatively without geometric calculations and a lot of landmarks. An imaginary almost 2 cm line is drawn between mastoid tip inferiorly and bony-cartilaginous junction of the external auditory canal superiorly. The main trunk of the facial nerve can be visualized at the midpoint of this line. The authors have been using this landmark successfully for the last 10 years, without any functional deficit of the parotid nerve. Identifying the facial nerve at the trunk level by this landmark renders following the branches forward in the glandular parenchyma less complicated.