Actually I seem to recall reading somewhere that about 80% of implantees retain their residual hearing, which is good.
Jake, Sorry but I think sucess with CI has more to do with the type of loss. It's lots easier to remember how to listen, if your brain knows how to process sound like a hearing person's brain. I know that the rate of dissatisfaction with CI is rather low, but that might be due to the fact that overall, most deaf people weren't born deaf. As a matter of fact overall, born deaf-hoh people only make up about 5% of the total deaf/hoh population. That's also probaly why the oral failure rates are claimed to be so low. It's lots easier to interpret sound once you know what sound actually IS. I have a feeling a large percentage of the prelingally deafened sucesses aren't classic prelingals (people who were born deaf or went deaf very early, like when they were infants.) I'm not saying that a classic preling can't be an oral sucess. Hey even back in the '60's with really primative technology something like 10% of born deafies were oral sucesses. I'm just saying that the percentage of classic prelings who are oral sucesses has always been quite low, much lower in fact then most oralists want to admit. Granted a person's attitude can impact sucess quite significently but on the other hand, there ARE people who really don't care for hearing. I think it's an overrated sense and I am a pure aural learner!!! I really admire people like pinkster and CSN who decide that being deaf ain't the end of the world! I wish there were more of you guys out there!