Cochlear Implantation for Common Cavity Deformity

The common cavity deformity (CCD) of the inner ear is characterized by cochlea and vestibule forming a single cavity. It indicates cochlear implantation (CI) and about 15% to 25% of inner ear malformation. However, complications such as facial nerve injury, penetration of the electrode array into the internal auditory canal (IAC) and electrode displacement are common, leading to unsatisfied outcomes. This book describes the embryology of CCD, preoperative auditory, balance and vestibular evaluat