Variations in Facial N branching pattern – Expected consistencies and surprises
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 7
Abstract
Facial N is the most important anatomical structure of interest in parotid surgeries, the dissection and preservation of branches of which is the key step in parotidectomy procedures. Even after an apparently well preserved nerve trunk and its branches, some patients have bothersome post operative nerve deficits. This is most likely due to unrecognized injury to the anastamosing fibres among various branches. With high variations among the branching pattern, it is obligatory to meticulously dissect and preserve all the branches and the anastamosing fibres for a good post operative outcome. We have studied the branching pattern of facial N in meticulously performed 32 parotid surgeries at our department and have compared it with previous similar studies. Davis Type 2 happened to be the commonest branching pattern in our study followed by Type 1. We didn’t encounter any type 3 pattern in our patients. There was a significant inconsistency in the frequency of branching pattern among various studies, signifying the inherent extreme variability of its anatomy. Hence a thorough knowledge of the entire branching pattern and a dedicated dissection to preserve all the branches and anastamosing fibres becomes mandatory to avoid unpleasant postoperative nerve deficits.
Authors and Affiliations
Dr. Ramesh Muthuvelu, Dr. Gurumoorthy Narayanasamy
Keywords
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- EP ID EP377410
- DOI 10.9790/0853-1707090103.
- Views 75
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