title: Tympanoplasty of the radical operated middle ear.
abstract: A type of tympanoplasty is described to restore hearig at patients who had a radical mastoidectomy. The technique of middle ear reconstruction was first studied at the testanimal. It was found that a certain resonance frequency could be of use to get an extra hearing gain. Furtheron amplitude and fase-difference between the round and oval window are explored. The results of 16 patients 5 years after operation are discussed.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D001299:Audiometry; D003638:Deafness / Q000601:surgery; D004195:Disease Models, Animal; D004432:Ear, Middle / Q000601:surgery*; D005500:Follow-Up Studies; D006168:Guinea Pigs; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications / Q000601:surgery*; D014433:Tympanoplasty / Q000379:methods