Traumatic luxation of the stapes.
A case of traumatic middle and inner ear damage due to involuntary piercing of the tympanic membrane with a knitting needle is reported. The incudo-stapedial joint was dislocated and the intact stapes was depressed into the vestibule. Exploration of the middle ear, followed by extraction of the stapes, closure of the oval window with a vein graft and interposition of a prosthesis between the incus and oval window, improved the condition but did not restore inner ear function. A second case, of unclear etiology, is also presented. The indications, timing and technique of surgical intervention in cases of traumatic luxation of the stapes are briefly discussed.
D004429:Ear Ossicles / Q000293:injuries*; D004584:Electronystagmography; D005260:Female; D006311:Hearing Disorders / Q000209:etiology; D006801:Humans; D004204:Joint Dislocations / Q000209:etiology / Q000601:surgery*; D008875:Middle Aged; D013199:Stapes / Q000293:injuries*; D013201:Stapes Surgery