I see you have had no responses, so I will dive in. I haven't heard of it being done, but that doesn't mean it can't be...you should talk to your primary physician and see what options are available for your particular situation.
Hope you get the answer you want!
Steph
6-7-13 band removed. No revision. Facebook Failed Lapbands and Realize Bands group and WLS-Support for Regain and Revision Group