From an internet site about Meniere' Disease:
Labyrinthectomy is a surgical choice for Meniereâ€™s patients if there is total or almost total hearing loss. The surgery goes through the Mastoid bone and the inner ear (the labyrinth) is opened up. At this point the semicircular canals are drilled away leaving the nerve balance which is completely removed. No hearing is spared during this procedure. What has been found to be more effective is the gentamicin injection procedure, which is a non-surgical procedure that can be done in a doctorâ€™s office.
Could you elaborate on what condition you are dealing with? It would appear to be Meniere's Disease but you didn't state that. As you can see, there is an alternative to the Labyrinthectomy you're considering but we're not doctors and cannot advise you on this. In addition, although we want to help, if possible, our collective experience is with acoustic neuroma, which is similar to Meniere's Disease but not identical. However, with a bit more information, some of our members may be able to answer your questions and offer some advice.