Thyroplasty

Thyroplasty

Q. 1

Which of the following is the indication for Type I thyroplasty?

 A

Vocal cord medialization

 B

Vocal cord lateralization

 C

Vocal cord shortening

 D

Vocal cord lengthening

Q. 1

Which of the following is the indication for Type I thyroplasty?

 A

Vocal cord medialization

 B

Vocal cord lateralization

 C

Vocal cord shortening

 D

Vocal cord lengthening

Ans. A

Explanation:

Type I thyroplasty is a form of medialization laryngoplasty, in which an implant is placed between the thyroid cartilage and the vocalis muscle to medialize the membranous vocal fold.

 

Q. 2

Type I thyroplasty is for:

 A

Vocal cord medialization

 B

Vocal cord lateralization

 C

Vocal cord shortening

 D

Vocal cord lengthening

Q. 2

Type I thyroplasty is for:

 A

Vocal cord medialization

 B

Vocal cord lateralization

 C

Vocal cord shortening

 D

Vocal cord lengthening

Ans. A

Explanation:

Q. 3

In thyroplasty type 2, vocal cord is:

 A

Lateralized

 B

Medialized

 C

Shorterned

 D

Lengthened

Q. 3

In thyroplasty type 2, vocal cord is:

 A

Lateralized

 B

Medialized

 C

Shorterned

 D

Lengthened

Ans. A

Explanation:

 

Isshiki divided thyroplasty procedures into 4 categories to produce functional alteration of vocal cords:

  • Type 1 : Medial displacement of vocal cord (done by injection of gel foam/Teflon paste)
  • Type 2 : Lateral displacement of cord (done to improve the airway)
  • Type 3 : Shortening (relax) the cord, to lower the pitch (gender transformation from female to male)
  • Type 4 : Lengthening (tightening) the cord, to elevate the pitch (gender transformation from male to female)



Q. 4

Treatment of Puberphonia is ‑

 A

Thyroplasty type I

 B

Thyroplasty type II

 C

Thyroplasty type III

 D

Thyroplasty type IV

Q. 4

Treatment of Puberphonia is ‑

 A

Thyroplasty type I

 B

Thyroplasty type II

 C

Thyroplasty type III

 D

Thyroplasty type IV

Ans. C

Explanation:

Ans. is `c’ i.e., Thyroplasty type III

Puberphonia (Mutational falset to voice)

  • In males at the time of puberty, the voice normally drops by an octave and becomes low pitch. It occurs because vocal cords lengthen.
  • Failure of this change leads to persistence of childhood high pitched voice and is called as puberphonia.
  • It is seen in boys who are emotionally insecure and show excessive attachment to their mothers. Their physical and sexual development is normal.
  • So the surgical treatment of puberphonia is lengthening of vocal cord i. e. Thyroplasty type III

THYROPLASTY

  • Isshiki divided thyroplasty procedures into 4 categories to produce functional alteration of vocal cords : –
  1. Type 1: Medial displacement of vocal cord (done by injection of gel foam/Teflon paste)
  2. Type 2 : Lateral displacement of cord (done to improve the airway).
  3. Type 3 : Lengthening (relax) the cord, to lower the pitch (gender transformation from female to male).
  4. Type 4 : Shortening (tightening) the cord, to elevate the pitch (gender transformation from male to female), for example as a treatment of androphonia.


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