Vol.99 No.9 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 99 No. 9 September 2006
Tympanoplasty in our Department
-Treatment of the Posterior Meatal Wall-
Tatsuyuki Banno and Shigeru Inafuku
(Aichi Medical University)
Canal wall up tympanoplasty is considered an ideal method because of its effective preservation of the meatal morphology with early drying and aroidance of disorder in the mastoid cavity after surgery. However, since the posterior meatal wall is preserved in this method, a blind spot in the surgical field may result in a higher incidence of residual cholesteatoma than canal wall down tympanoplasty. There is a risk of retraction cholesteatoma recurrence in spaces of the reconstructed external auditory canal in patients in whom pneumatization in the mastoid wall down cavity has not been achieved. To solve these problems, the usefulness of mastoid obliteration tympanoplasty has been reported, and reconstruction of the posterior meatal wall using soft tissues has been also reported. In this study, we evaluated the problems of reconstructing the external auditory canal using soft materials based on the experience and outcomes of patients with cholesteatoma treated by this method since 1999 after the method was carefully evaluated.
Key words :canal wall up tympanoplasty, canal wall down tympanoplasty, mastoid obliteration,
intact canal skin