gms | German Medical Science

83. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

16.05. - 20.05.2012, Mainz

Adjustable titanium screw in treatment of unilateral vocal cord paralysis: an observation of curative effects

Meeting Abstract

Suche in Medline nach

  • corresponding author Wu Wen - Changhai Hospital, Second Military Medical University, Shanghai, P.R. China
  • Bifeng Sun - Changhai Hospital, Second Military Medical University, Shanghai, P.R. China
  • Chang Liu - Changhai Hospital, Second Military Medical University, Shanghai, P.R. China
  • Mingxing Zhang - Changhai Hospital, Second Military Medical University, Shanghai, P.R. China
  • Yongmei Yu - Changhai Hospital, Second Military Medical University, Shanghai, P.R. China

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. 83. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. Mainz, 16.-20.05.2012. Düsseldorf: German Medical Science GMS Publishing House; 2012. Doc12hnod042

doi: 10.3205/12hnod042, urn:nbn:de:0183-12hnod0424

Veröffentlicht: 4. April 2012

© 2012 Wen et al.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.de). Er darf vervielf&aauml;ltigt, verbreitet und &oauml;ffentlich zug&aauml;nglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.


Gliederung

Text

To observe the curative effects of self-designed adjustable titanium screw in treatment of unilateral vocal cord paralysis in dogs.We designed and prepared an adjustable titanium screw. The beagle dogs were divided into an experimental group and a control group (n=3) at random. Animals in the experimental group had their left recurrent laryngeal nerve resect and received implantation of adjustable titanium screw. The arytenoid cartilage was adjusted to allow the left vocal cord in the middle, so as to achieve glottis closure when making a sound. The dogs in the control group only received recurrent laryngeal nerve resection. Odservation with electron fibrolaryngoscope and CT was done immediately, 1, 2, and 4 mon. after operation; electron fibrolaryngoscope was also used before operation. The curative effects and the prognoses of dogs were observed. Four moths after operation electron fibrolaryngoscope found that the adjustable screw in the experimental group could make the left arytenoid cartilage move inwardly, benefiting glottis closure and improving the voice quality. Animals in the control group had their left vocal cord located in the paramedina position, and there was cleft during glottis closure. CT image indicated that the adjustable screw was in a good position, and there was no breaking off. Local slight inflammation was seen in both groups 1, 2, and 4 mon. after operation. Intrinsic laryngeal muscle atrophy aggravated as time passing by. There was no severe inflammation around the implants or implants excretion.Our adjustable screw is easy to perform in surgical treatment of unilateral vocal cord paralysis; it can be adjusted during operation and the outcome can be obsered in time. We think a new therapy method in unilateral vocal cord paralysis