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Comparative Study
. 2014 Apr;80(2):156-60.
doi: 10.5935/1808-8694.20140032.

Comparison of the use of silastic with titanium prefabricated implant in type I thyroplasty

[Article in English, Portuguese]
Akshat Malik, W V B S Ramalingam, Ajith Nilakantan, Satish Nair, A V Ramesh, Poonam Raj
Comparative Study

Comparison of the use of silastic with titanium prefabricated implant in type I thyroplasty

[Article in English, Portuguese]
Akshat Malik et al. Braz J Otorhinolaryngol. 2014 Apr.

Abstract

Introduction: Type I thyroplasty is the treatment of choice for unilateral vocal cord palsy with no spontaneous recovery.

Objectives: To compare the use of silastic implant with titanium vocal fold medializing implant (TVFMI®) in type I thyroplasty for unilateral vocal cord palsy with respect to subjective and objective improvement in voice, endoscopic changes in vocal cords, surgical time, and cost effectiveness.

Methodology: This was a prospective study conducted on 40 patients with unilateral vocal cord paralysis who underwent type I thyroplasty with either silastic implant or TVFMI®. Pre-operative and four-week post-operative assessment and statistical comparison were performed by videolaryngoscopy, stroboscopy, perceptual assessment (GRBAS), subjective (voice handicap index) analysis of voice, and computer-assisted acoustic and electroglottographic assessment. The duration of surgery and cost of implant were also recorded.

Results: Although both implants showed improvement in quality of voice following thyroplasty, TVFMI® presents slightly better results in objective voice analysis. The surgery time for TVFMI®insertion was shorter, but the costs were higher.

Conclusion: TVFMI® may be preferred for medialization thyroplasty as it presents better voice results and demands less surgical time; however, it is costlier than silastic implant.

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Figures

Figure 1
Figure 1
A, Carved-out type B silastic implant. B, Silastic implant placed in cartilage window.
Figure 2
Figure 2
A, Titanium vocal fold medializing implant (TVFMI®). B, TVFMI® placed in the cartilage window.
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