How To: Type I Thyroplasty Using a Titanium Implant Combined with Modified Arytenoid Adduction

Postoperatively, there were significant improvements in the maximum phonation time, mean airflow rate, and voice handicap index.

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November 2020

Results

The patients’ average age was 67.9 years (range, 44-83 years). Postoperatively, there were significant improvements in the MPT, MFR, and VHI. Pre- and postoperative comparisons of SFF, PR, and acoustic parameters were not possible in most patients because they had difficulty producing sustained vowel sounds and had a very short MPT.

The mean postoperative SFF and PR were 145.7 Hz (range B2-G3) and 21.7 ± 4.5 semitones (mean ± standard deviation), respectively. The results of the postoperative acoustic analysis of the jitter %, shimmer %, and harmonic-to-noise ratio were 0.53 ± 0.18%, 2.54 ± 1.06%, and 0.12 ± 0.02, respectively. Almost all postoperative test results were in the normal range for elderly adult males. In the postoperative CT neck images, no implant migration, deformation, or fractures were identified.

View the results associated with the pre- and postoperative endoscopic laryngeal findings of the 10 patients in the video at https://players.brightcove.net/656326989001/default_default/index.html?videoId=6166961476001.