Djjane, welcome to the forum. So sorry about your son's diagnosis. As you can see in my signature, our world changed over the past several months & we are thrilled to be on the other side of the surgery w our 14 yo son and heading down the path to recovery. All you can do is to research, research, research. Definitely check out the tethering and other options. We felt in our situation that there was no alternative due to the degree of his curve and knowing that he still has another 4-5" of growth to go, his situation would only get worse (he grew 5" in the past year alone); the longer one waits for surgery it seems the more painful, tougher the surgery, and possibly less effective it is. You're also very fortunate that he's not in pain; it actually is true that many of the scoli kids have pain. Our son had significant pain over the past year, and his activities were very much curtailed over the 2-3 months before surgery. Physical therapy helped tremendously. Feel free to message me if you'd like; Katie had wonderful advice for us as well a few other bloggers, and searching the forum is just invaluable. Good luck.
Mom of 14yo son diagnosed Oct 2011
Surgery 1/3/12 w Dr. Geof Cronen,
Tampa General Hospital T3 to L1
Jacob's pre surg curves: T58 & L31 12/28/11
photos & xrays in "First-Time Surgery" thread "Before & After"