Review of Cases in Which Voice Had Not Improved after Type I Thyroplasty

Abstract

We studied two cases which didn’t have improvement of voice after type ・ thyroplasty. Both cases underwent surgery in different hospitals. The positions of fenestration and implant insertion methods were found to be the causes for poor post-surgical voice. We performed follow-up surgery in these cases, and their voices showed improvement.
Patients with a large posterior glottal gap and improper vocal fold level in the vertical plane need to have an arytenoid adduction in addition to a type1 thyroplasty performed. Although vocal fold paralysis is located in the median or that neighborhood, it can’t keep that position at the time of the phonation. Such cases are adaptation of an arytenoid adduction. We introduced our type・ thyroplasty operative procedure.