目的：探讨下咽、颈段食管癌根治术患者喉功能保留与发声重建的手术方法。
Objective: To evaluate surgical treatment methods for preserving laryngeal function and voice reconstruction for patients with hypopharyngeal and cervical esophageal carcinoma.
目的：探讨用甲状软骨外层黏骨膜瓣修复创面并重建发声功能的效果。
OBJECTIVE: to investigate the efficacy of using external layer mucoperiosteum valve of thyroid cartilage to repair the wound surface and reconstruct vocal function.
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