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KMID : 0386320160490010003
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Korean Leprosy Bulletin
2016 Volume.49 No. 1 p.3 ~ p.11
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An effect of Masseter muscle transfer in recurred cases following temporalis transfer for lower lip paralysis
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Ahn Sung-Yul
Kim Jong-Pill
Park Hyang-Joon
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Abstract
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Background : Facial nerve palsy in patients with leprosy brings a variety of discomfort functionally and cosmetically. Although the distortion of the lips is less frequent than that of the eyes, when it occurs, it happens either unilaterally or bilaterally and shows a different dynamic from that in eyes. The lower lip droop causes saliva to flow out of the mouth when eating and exposes the gum and teeth.
Materials and methods : All patients were previously treated using the TMT procedure yet symptoms recurred within an unacceptable timeframe. Therefore, we retreated patients using the masseter muscle plication. We performed the masseter muscle plication to the lateral portion of the lower lip muscle to give it power without dividing the anterior segment of masster muscle from mandibular border.
Results : Complete closure of the mouth was observed in 6 patients with a moderate degree of lower lip droop. One patient that presented with severe lower lip droop bilaterally showed only partial closure.
Conclusion : Without dividing anterior half segment of masseter muscle from mandibular border, the direct plication of the anterior border of masseter muscle and lower lip muscles was very effective method to correct the lower lip droop and to close the mouth in recurrent patients after temporal muscle transfer.
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KEYWORD
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Lower lip drooping, Masster muscle transfer, Temporal muscle transfer
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