Vol.95 No.5 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 95 No. 5 May 2002
Two Cases of the Ossicular Disruption Due to Head Injury
Kaheita Hirasugi
(Matsushita Memorial Hospital)
Satoshi Yamamoto, Toshihiro Suzuki, Masataka Murakami and Yasuo Hisa
(Kyoto Prefectual University of Medicine)
Kou Hayashido
(Kyoto First Red Cross Hospital)
Two cases of the ossicular disruption due to head injury were surgically treated in our department. These two cases also showed conductive hearing loss after the injury. An exploratory tympanotomy was carried out in these two cases.
In the first case, there was a fracture in the left external ear canal, and the fracture led to the middle ear with a fracture of the long process of incus.
In the second case, there was ossific change and adhesion between the malleus and scutum. Almost normal hearing was obtained after tympanoplasty modified 3 types in both cases.
It is difficult to confirm the presence of lesion by conventional hearing and imaging tests. Preoperative approaches to this disease are mentioned from these cases and literature.
Key words : ossicular disruption, conductive hearing loss, exploratory tympanotomy