I have roto-scoliosis. In 2000 I had a 52 degree curve. Now, in 2012 it affects my breathing. Should I worry?

Get a new xray. Curves over 45 grow 1-2 degrees a year52plus10-24 degrees52msy now be over sugery 60 surgery becomes technically more difficultthe bigger the curve the older you are the higher the complication rate see an experienced deformity spine surgeon.
Probably. Over 12 years, the scoliosis may have advanced to a greater degree. With addiditional progression, the rotational deformity with associated rib cage changes can cause changes to the volume available for lung function. A follow-up evaluation for the scoliosis would be a good idea.