Hi, Amy:
I think it's a crapshoot whatever type of treatment you choose. Like Steve said, some people suffer from worse balance after radiation (or surgery), while others improve. Someone on our forum (I can't remember who) recently posted that Dr. Chang told her that 1/3 of CK patients notice an improvement in balance post-treatment.
For me, CK has been nothing short of miraculous. My balance is much better now than it was before getting treatment (although it was about 15-20% worse for a few months immediately after treatment, during which time my tumor swelled). Subjectively, my balance is 50 to 70% better than it was immediately before treatment and better now than it has been in the past 9 years. I still have mild disequilibrium (especially when I get tired from lack of sleep or overwork), but it is rarely a distraction any more.
The body has an incredible ability to heal itself, even if not completely. What I worry about procedures like translab is that the vestibular nerve is removed. Once it's gone, you can't get it back. And some people have had bad balance problems after having their vestibular nerve removed. Now, before I get any hate mail, I want to stress that many people have had translab and had no balance issues whatsoever afterwards and their surgeries were very successful and the best treatment choice for them personally. I'm just pointing out that the removal of a body part is permanent. To be fair, a friend of mine knows someone who had radiation for an unspecified brain tumor and they've had horrible balance ever since. The hardest part about choosing a treatment plan that is best for you is that it's impossible to divine the outcome.
I think it is terrific that you are very active. That will help your balance no matter what type of treatment you have. I am an avid outdoorsman and swear that all my hiking over uneven ground is the best vestibular therapy I could possibly do (although Stoneaxe would undoubtedly give me a run for the money with his standup paddleboarding
).
There will always be stories of worst-case scenarios to find if you look hard enough. For your peace of mind, please try to focus on the most likely outcome from a statistical standpoint. The fact that you're active and healthy will probably put you in that group of people who recover the fastest and the most after treatment.
Best wishes,
TW