<prompt> Nerve damaged in radical mastoidectomy is -FacialCochlearVestibularAll  <response>: Complications of radical mastoidectomyInjury to facial nerveDislocation of incusInjury to horizontal semicircular canal. The patient will have post-operative giddiness and nystagmus.Injury to sigmoid sinus with profuse bleeding.Injury to the dura of middle cranial fossa. 