There were very little removed! just shards of bits of tiny bones from drill and burring (to make bed for the implant) hardly anything were lost and easily repaired by themselves post surgery just like healing a broken leg. I felt NOTHING post surgery the only thing that bothered me were wearing the Turban for 2 days and it was in the middle of hot summer! the only signs of my surgery were the scar which is hardly noticabe now.
As for Kerio's description of "Cracking the Skull open" sounded like that the surgeons cracked our skull open to access through the brain to our cochlea, in fact the operation were no where near the brain! Kerio needs to change his/her wording of feelings of the surgery to prevent confusion/scaring to up and coming Cochlear implant candiates.