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A transthyroidal method for arytenoid adduction: a basic anatomical study.
J Voice. 2012 Jul; 26(4):526-9.JV

Abstract

INTRODUCTION

Arytenoid adduction is a very effective procedure for medializing the posterior part of the vocal fold in vocal fold paralysis. Major drawback of the method is the technically sometimes-difficult access to the arytenoid with increased postoperative morbidity. Aim of this study was to provide basic anatomical data regarding the accessibility of the arytenoid cartilage through a thyroplasty window. Furthermore, to investigate the feasibility of an arytenoid adduction by fixation of a surgical screw to the arytenoid cartilage by using this approach.

MATERIALS AND METHODS

10 cadaver larynges, six female and four male, were dissected and measured for our points of interest. A standard manufacture-made surgical screw attached to a suture was anchored to the fovea oblonga of the arytenoid cartilage.

RESULTS

Our anatomical measurements proved a mean distance from the posterior edge of the thyroid window to the arytenoid of about 8-9 mm in male larynges and 7-8 mm in female larynges. The distances did not differ significantly between the sexes. Pulling the anchored surgical screw medializes the posterior part of the vocal fold.

DISCUSSION

Our data showed that there is a very constant morphometric relation between the thyroplasty window and the arytenoid cartilage. It is known that gender-related differences result in a veritable laryngeal dimorphism in nearly all absolute laryngeal dimensions. These differences appear to a much lesser extend in the distances from the surface to the depth, as was confirmed in our series. Using these findings led us to identification of the fovea oblonga near the muscular process as the most favorable point for fixation of a surgical screw through a conventional thyroplasty window. Pulling the attached suture medializes the arytenoid cartilage.

Authors+Show Affiliations

Department of Phoniatrics, ENT University Hospital Graz, Medical University Graz, Graz, Austria.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22082861

Citation

Friedrich, G, et al. "A Transthyroidal Method for Arytenoid Adduction: a Basic Anatomical Study." Journal of Voice : Official Journal of the Voice Foundation, vol. 26, no. 4, 2012, pp. 526-9.
Friedrich G, Gugatschka M, Kiesler K, et al. A transthyroidal method for arytenoid adduction: a basic anatomical study. J Voice. 2012;26(4):526-9.
Friedrich, G., Gugatschka, M., Kiesler, K., Pertl, L., Gerstenberger, C., Weiglein, A., & Storck, C. (2012). A transthyroidal method for arytenoid adduction: a basic anatomical study. Journal of Voice : Official Journal of the Voice Foundation, 26(4), 526-9. https://doi.org/10.1016/j.jvoice.2011.07.007
Friedrich G, et al. A Transthyroidal Method for Arytenoid Adduction: a Basic Anatomical Study. J Voice. 2012;26(4):526-9. PubMed PMID: 22082861.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A transthyroidal method for arytenoid adduction: a basic anatomical study. AU - Friedrich,G, AU - Gugatschka,M, AU - Kiesler,K, AU - Pertl,L, AU - Gerstenberger,C, AU - Weiglein,A, AU - Storck,C, Y1 - 2011/11/13/ PY - 2011/02/01/received PY - 2011/07/21/accepted PY - 2011/11/16/entrez PY - 2011/11/16/pubmed PY - 2012/12/10/medline SP - 526 EP - 9 JF - Journal of voice : official journal of the Voice Foundation JO - J Voice VL - 26 IS - 4 N2 - INTRODUCTION: Arytenoid adduction is a very effective procedure for medializing the posterior part of the vocal fold in vocal fold paralysis. Major drawback of the method is the technically sometimes-difficult access to the arytenoid with increased postoperative morbidity. Aim of this study was to provide basic anatomical data regarding the accessibility of the arytenoid cartilage through a thyroplasty window. Furthermore, to investigate the feasibility of an arytenoid adduction by fixation of a surgical screw to the arytenoid cartilage by using this approach. MATERIALS AND METHODS: 10 cadaver larynges, six female and four male, were dissected and measured for our points of interest. A standard manufacture-made surgical screw attached to a suture was anchored to the fovea oblonga of the arytenoid cartilage. RESULTS: Our anatomical measurements proved a mean distance from the posterior edge of the thyroid window to the arytenoid of about 8-9 mm in male larynges and 7-8 mm in female larynges. The distances did not differ significantly between the sexes. Pulling the anchored surgical screw medializes the posterior part of the vocal fold. DISCUSSION: Our data showed that there is a very constant morphometric relation between the thyroplasty window and the arytenoid cartilage. It is known that gender-related differences result in a veritable laryngeal dimorphism in nearly all absolute laryngeal dimensions. These differences appear to a much lesser extend in the distances from the surface to the depth, as was confirmed in our series. Using these findings led us to identification of the fovea oblonga near the muscular process as the most favorable point for fixation of a surgical screw through a conventional thyroplasty window. Pulling the attached suture medializes the arytenoid cartilage. SN - 1873-4588 UR - https://www.unboundmedicine.com/medline/citation/22082861/A_transthyroidal_method_for_arytenoid_adduction:_a_basic_anatomical_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0892-1997(11)00113-5 DB - PRIME DP - Unbound Medicine ER -