Intact acoustic reflexes in the presence of ossicular disruption.
The potential usefulness of impedance studies is reviewed and a case of osteogenesis imperfecta, having bilateral ossicular discontinuity and intact acoustic reflexes, is presented. This seeming paradox was explainable on the basis of surgically confirmed, bilateral disruption of the stapes crura, central to the stapedial tendon insertion.
D000158:Acoustic Impedance Tests; D000328:Adult; D001844:Bone Conduction; D004429:Ear Ossicles / Q000473:pathology*; D005260:Female; D006314:Hearing Loss, Conductive / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D010013:Osteogenesis Imperfecta / Q000150:complications / Q000473:pathology; D012022:Reflex, Acoustic