[Sound injuries after surgery of otosclerosis]

Surgery for otosclerosis means that the sound protection due to the fixation of the footplate does not exist anymore. As the Corti hair cells have been fragilized by proteolytic enzymes, it is absolutely necessary to reconstruct the sound mechanism in order to maintain the vibration of the perilymph absolutely within acoustical physiologic limit of movement. The means to realize this reconstruction are presented in this paper, as well as the results.