•Definition
–Surgery for reconstruction of tympnic
membrane and/or ossicles
•Classification
–Wullstein (1956)
–Austin and Kartush
Wullstein
1
2
3
4
5
Middle ear risk index
•MERI to predict the success rate.
•For accurate prediction of the results of
ossiculoplasty the status of middle ear and
its ossicles must be ascertained.
–Austine Kartush classification
–TM perforation
–Cholesteatoma
–Belluci classification
Austine Kartush
•Group A - Malleus and stapes present
•Group B - Malleus and foot plate of stapes
present
•Group C - Malleus absent and stapes
present
•Group D - Malleus and stapes
suprastructure absent
Austine Kartush
•Kartush added 3 more classes as a
modification of this scheme in include
ossicular fixity even when all three
ossicles are present.
•O - Intact ossicular chain
•E - Ossicular head fixation
•F - Stapes fixation
Belluci classification
MERI
•Indications
•What are you trying to achieve?
Indication
–TypeI-perf/ discharge/
conductive loss/
–Types II-IV-perf/
significant conductive
loss/ part of middle ear
surgery for
cholesteotoma/
CSOM/
–TypeV-stapes
footplate fixation
Contracindiction
–no cochlear function
–Neoplasm of middle
ear or EAC
–Malignant OE
–Only hearing ear or sig
better H Ear
•Relative contra
–EU dysfunction, very
young
–Chonic ear discharge
–If no sig hearing
improvement possible
with no hx of CSOM
–Pt factors-smoker etc,
diabetes