<prompt> Thyroplasty Type I is done for vocal cord...MedialisationLateralisationShorteningLengthening  <response>: Ans: a Medialisation Ref: Dhingra, 3rded, p. 364 4thed, p. 278Laryngeal frame work surgery - Isshikis classificationType I thyroplastyType II thyroplastyType III ThyroplastyType IV thyroplasty- Medial displacement- Lateral displacement- Shortening relaxation- Elongation tensioning Indications: Type III thyroplastyIndications: Type IV thyroplasty1 Adductor spasmodic dysphonia2 Mutational falsetto3 Gender transformation female to male1 Androphonia2 Post surgical defects3 Gender transformation male to female 