Inversion tables and Kyphosis?

I am a 31 year old male that just started working out again, cardio and weight training. One part of my body I always thought was permanent was my kyphosis (mild-moderate humping in upper back) Then I read about rolfing a few years ago and how it has helped some people actually straighten the spine. There are no rolfers within 250 miles of me, and from what I understand it is a 10 session deal. I think I also read where rolfing was to counteract the forces of gravity. Then I saw an ad for Teeters hang ups last week, and I am VERY curious to try this out. Has anyone had any success with better posture/reducing "hump back" with this device?? I've heard where people have actually grown an inch sometimes, and I would have to believe that would be a result of a straighter back.
I think I am going to get one regardless, but I'm trying to keep my expectations based in reality on what I can expect from it.

I had most of my spine fused when I was 17 due to kyphosis. If your spine is calcified, there is nothing short of surgery that can be done. If, instead, you have postural roundback with no spinal calcification (natural fusion) bracing may help. If you have an ortho that you see for your spine, consult them. They can let you know about these and other options. I can tell you that fusion with instrumentation really impairs your life, and is very painful. Good thing it is considered a last ditch measure.