Sure you can, you should consider Med-el
They have implant designed for severely ossified cochlea it's split array one have 7 electrodes and other have 5.
And if it have partial ossification you can get compressed one its shorter but has all 12 on one array.
I'm not sure if cochlear america have split array one of girl I know she had severe ossification she told me she have 2 array and she wear freedom.... so I'm not sure it doesn't say on website, something to ask .