이하선 내 안면신경의 분지양상
Branching Pattern of the Facial Nerve in the Parotid Gland
김영순, 서영진, 김욱, 전정수,
소속 상세정보
김영순 ( Kim Young-Soon )
가톨릭대학교 의과대학 성빈센트병원 외과학교실
서영진 ( Suh Young-Jin )
가톨릭대학교 의과대학 성빈센트병원 외과학교실
김욱 ( Kim Wook )
가톨릭대학교 성가병원 외과학교실
전정수 ( Chun Chung-Soo )
가톨릭대학교 의과대학 성빈센트병원 외과학교실
KMID : 0371320020620060453
Abstract
Iatrogenic injury of the facial nerve branch is the main complication during a parotidectomy, leading to functional damage in the patient. An exact and thorough understanding of the anatomy of the branching pattern of the facial nerve in the
parotid
gland is prerequisite for surgeons performing a parotidectomy. The aim of this study was to elucidate the branching pattern of the facial nerve inside the parotid gland. The relationships between the branches of the facial nerve were investigated
in 23
adult faces during parotidectomies for various etiologies. The branches of the facial nerve were divided into six types according to their branching patterns and their communication. Straight branching with two subtrunks was seen in 12 (52%) out of
the
23 cases (Type Ⅰ), two buccal branches from the lower and upper subtrunks was seen in 4 (17%) cases (Type Ⅱ), and anastomosis between the buccal and zygomatic branches in 4 (17%) cases (TypeⅢ). There were multiple anastomoses among the
temporal,
zygomatic and buccal branches in 2 (9%) cases (TypeⅣ). Only one (4%) case had buccal branch stemming from the marginal mandibular branch (Type Ⅵ). In most cases, the buccal branch was the thinnest. We think that many of the patients having a
parotid
tumor would possibly show a Type Ⅰ branching pattern during a parotidectomy. Although the marginal mandibular branch was known to have a long course, almost no anastomosis with other branches, and the most devastating functional damage after
iatrogenic
injury. Surgeons should be especially careful during the dissection along the course of buccal branch, which may be the thinnest, and prone to damage, transiently or permanently, following the procedure.
키워드
안면신경; 분지양상; Facial nerve; Branching pattern;
원문 및 링크아웃 정보
등재저널 정보