Mechanics of the TORP/stapes interface.
The gain in hearing as a result of ossicular prosthesis ( TORP ) placement on the stapes footplate was evaluated in 10 patients during actual middle ear reconstructive surgery. The patients with radical mastoidectomy cavities were operated on under local anaesthesia and intra-operative hearing was tested with the TORP shaft in three positions with regard to the stapes footplate; anterior, central and posterior. The anterior position of the shaft provided greater hearing improvement than the posterior position, with the central position falling approximately midway.
D000328:Adult; D001299:Audiometry; D001696:Biomechanical Phenomena; D003054:Cochlear Implants; D004429:Ear Ossicles / Q000502:physiology / Q000601:surgery*; D006801:Humans; D008722:Methods; D008875:Middle Aged; D013199:Stapes / Q000502:physiology