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Hydroxyapatite versus titanium implant: Comparison of the functional outcome after vocal fold medialization in unilateral recurrent nerve paralysis


Storck, C; Fischer, C; Cecon, M; Schmid, S; Gambazzi, F; Wolfensberger, M; Brockmann, M (2010). Hydroxyapatite versus titanium implant: Comparison of the functional outcome after vocal fold medialization in unilateral recurrent nerve paralysis. Head and Neck, 32(12):1605-1612.

Abstract

BACKGROUND.: Results of medialization thyroplasty for treatment of unilateral vocal fold paralysis are often unsatisfactory. This study compares glottal closure and voice quality after use of 2 different medialization implant types: VoCoM and TVFMI. METHODS.: In all, 26 patients with unilateral vocal fold paralysis following thoracic surgery underwent medialization thyroplasty. In 11 patients (group I), a hydroxyapatite implant (VoCoM) was used. In 15 patients (group II), a titanium implant (TVFMI) was used. Preoperative and postoperative glottal closure and voice function were assessed with videostroboscopy, perceptual and objective voice measures, and the Voice Dysfunction Index (VDI). RESULTS.: Group II showed a higher rate of complete glottal closure and greater improvement in perceived hoarseness, maximal phonation time, and maximal voice intensity than those in group I. CONCLUSIONS.: With the individually adjustable titanium implant, better glottal closure and better functional outcome (phonation time and voice quality) were achieved. (c) 2010 Wiley Periodicals, Inc. Head Neck, 2010.

BACKGROUND.: Results of medialization thyroplasty for treatment of unilateral vocal fold paralysis are often unsatisfactory. This study compares glottal closure and voice quality after use of 2 different medialization implant types: VoCoM and TVFMI. METHODS.: In all, 26 patients with unilateral vocal fold paralysis following thoracic surgery underwent medialization thyroplasty. In 11 patients (group I), a hydroxyapatite implant (VoCoM) was used. In 15 patients (group II), a titanium implant (TVFMI) was used. Preoperative and postoperative glottal closure and voice function were assessed with videostroboscopy, perceptual and objective voice measures, and the Voice Dysfunction Index (VDI). RESULTS.: Group II showed a higher rate of complete glottal closure and greater improvement in perceived hoarseness, maximal phonation time, and maximal voice intensity than those in group I. CONCLUSIONS.: With the individually adjustable titanium implant, better glottal closure and better functional outcome (phonation time and voice quality) were achieved. (c) 2010 Wiley Periodicals, Inc. Head Neck, 2010.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Otorhinolaryngology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:December 2010
Deposited On:28 May 2010 06:45
Last Modified:13 May 2016 10:29
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:1043-3074
Publisher DOI:10.1002/hed.21370
PubMed ID:20310039
Permanent URL: http://doi.org/10.5167/uzh-34251

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