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KMID : 0361019980410081004
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Korean Journal of Otolaryngology - Head and Neck Surgery
1998 Volume.41 No. 8 p.1004 ~ p.1007
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Facial Nerve Function after Anterior Transposition of Facial Nerve
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윤병문/Byoung Moon Yoon
이원상*/박상유/홍봉기*/Won Sang Lee*/Sang Yoo Park/Bong Ki Hong*
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Abstract
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Background and Objectives: The transposition of the facial nerve is an essential procedure to obtain optimal surgical field and to remove the lesion completely when the tumor is located medial to the facial nerve. However, we frequently
encounter
postoperative facial palsy after transposition. The aim of the study is to find out how to treat the facial nerve in order to reduce the incidence and the degrees of postoperative facial palsy after anterior transposition of the facial nerve.
Material and Methods: Facial nerve function after anterior transposition of the facial nerve were analyzed retrospectively in 10 cases with skull base tumor using the House-Brackmann grading system. The minimum follow-up period was 12
months.
Results: Favorable outcome was noted when the fallopian canal was exposed as widely as possible, and soft tissues were preserved at stylomastoid foramen. Postoperative facial palsy was recovered completely when the facial nerve was not
involved
by disease. The final House-Brackmann grades were Ⅰ, Ⅱ, Ⅲ in three cases in which tumor was involved with the facial nerve. The immediate postoperative function of the facial nerve is influenced by surgical procedure and surgeon's skill, and
the
final status of the facial nerve function depends on the involvement of tumor in the nerve. Conclusion: In order to obtain favorable postoperative facial nerve function, no attempt was made to dissect the facial nerve, and all the soft
tissue
that were attached to the facial nerve through the stylomastoid foramen were sharply elevated and transpositioned together with the facial nerve.
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