[Investigation of Type I Thyroplasty Using XXXX Implant].

@entity702 @entity1 @entity449 @entity912
OBJECTIVE: The aim of this study was to describe a new @entity702 thyroplasty medializing implant and evaluate its usefulness. MATERIAL AND METHOD: Retrospective study of 9 male @entity1 with severe unilateral vocal fold @entity912 after @entity449 surgery who underwent type I thyoplasty with arytenoid adduction under general anesthesia. Preoperative and postoperative glottal closure and voice function were evaluated by acoustic analysis (Jitter %, Shimmer %, NHR), stroboscopic findings, maximum phonation time, mean airflow rate, voice handicap index and computed tomography findings. These tests were evaluated before and 3 months after surgery. RESULT: All acoustic parameters improved after surgery. In stroboscopic findings, symmetrical mucosal waves were identified in 3 cases. Maximum phonation time prolonged, mean flow rate decreased and voice handicap index improved. In computed-tomography findings, breakage, deformation, dropped and migration of @entity702 plate were not identified. CONCLUSION: In surgery of vocal fold paralyzed @entity1 , it is necessary to reconstruct vocal fold in physiological state at the time of phonation. Using the @entity702 plate developed for this purpose, all @entity1 obtained good vocal improvement.
