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Histopathology of temporal bone fractures: Implications for cochlear implantation
Author(s) -
Morgan Warren E.,
Coker Newton J.,
Jenkins Herman A.
Publication year - 1994
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-199404000-00006
Subject(s) - temporal bone , inner ear , medicine , histopathology , labyrinthitis , sensorineural hearing loss , spiral ganglion , anatomy , cochlea , hearing loss , pathology , audiology
Temporal bone fractures often cause loss of audiovestibular function. Those patients with bilateral profound sensorineural hearing losses secondary to temporal bone fractures become candidates for cochlear implantation. The authors present the histopathology of five temporal bone fractures in three patients, evaluating specifically the traumatic effects on the neural elements of the inner ear. Transverse fractures of the temporal bone result in severe loss of hair cells, ganglion cells, and other supporting cells in the inner ear. Occasionally labyrinthitis ossificans may occur as a consequence of trauma or infection. While longitudinal fractures do not violate the otic capsule, these same neural elements may be damaged by concussion.