Radical mastoidectomy includes all except
It is an operation to eradicate disease of the middle ear and mastoid in which mastoid, middle ear, attic and the antrum are exteriorized into the external ear by removal of posterior meatal wall. All remnants of tympanic membrane, malleus, incus (not the stapes), chorda tympani and the mucoperiosteal lining are removed, and the opening of eustachian tube closed by packing a piece of muscle or cailage into the eustachian tube. Ref: Dhingra 7e pg 459.
Ear
Closure of auditory tube
Ossicles removed
Cochlea removed
Exteriorisation of mastoid
Cochlea removed