It is suitable to do laryngoplasty for laryngostenosis in 1 5 years after the operation for malignant laryngeal tumor.

喉恶性肿瘤术后1 5年，进行喉狭窄成形术较为适宜。

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This procedure is referred to as an arytenoid adduction and is done together with a medialization laryngoplasty.

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In one type of laryngoplasty, an implant made of a surgical polymer is placed inside the tracheal wall (as support) to medialize the affected vocal cord.

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An alternative type of laryngoplasty involves injection of purified fats, Gelfoam, collagen or alloderm tissues such as Cymetra which may be performed in a clinic setting under local anesthesia or occasionally under general anesthesia.

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