What is the patho physiology

what is the patho physiology behind Post operative complications of stapedotomy leading to damage to the inner ear and subsequently sensory neural hearing loss and therefore ultimately dead labyrinth?
Also, Ma’am, why is Submerged/ floating footplate seen as a part of post operative complication of stapedotomy?

Cholesteatoma is not a complication of stapedotomy

Complications of stapedotomy

Sensorineural hearing loss

Injury to the facial nerve

floating /submerged footplate

Endolymph gush due to damage to the inner ear

dislodgement of piston

Post op vertigo

dead ear