470 



LARYNUOTOMY. 



is sometimes remarkable. The use of a tracheal tube, apart from 

 the discomfort it causes, has certain serious disadvantages ; on 

 the other hand, resection of the arytenoid cartilage only succeeds 



FlG. 383.- — Pulveriser for disinfecting the laryngeal wound. 



in a certain proportion of cases, and does not ensure removal of the 

 loud or noisy breathing. 



Before adopting arytenoidectomy, Moller tested the effects of 



Fig. 384. — Anteroposterior section of the preceding larynx. P, Wound. 



other operations on roaring horses. Having satisfied himself that 

 excision of the vocal cords was useless as a remedy, Moller opened 

 the crico-arytenoid articulation, with the intention of producing 

 anchylosis or fixation of the passive arytenoid cartilage, but while 



