With congenital scoliosis, hemi vertebrae T5, curve at 55 degrees, 13 year old, was 44 just a few months ago, now progressed last xray Mar 12, 2013 rib hump present now.  Is this form of scoliosis only caused by uneven growth plate activity of the misformed vertebrae, or as in idiopathic scoliosis, is some of the progressing curve caused by the rotation of the spinal column.  What i am trying to get at, and i know you have a natural bias, but is it possible, to ever stop and reduce this type of scoliosis through exercise, or traction, at all.
55 degree scoliosis is concerning. You still in growing phase. How about menstrual periods? You tend to grow 1.5 to2 years after the starting of the monthly periods. We also see riser sign an indicator of the skeletal maturity. In your case, scoliosis is due to uneven growth of the spine with more growth on the side of hemivertebra. Traction and exercise may not reduce or halt the progression. From my opinion you need a spinal fusion surgery with partial correction of the curve. Thanks.