This is not a paper about scoliosis, but more generally about spinal surgery and what doctors think they're saying vs. what patients believe the outcome of their surgery will be.

Here's a snippet from the results:

"The patients consistently had higher expectations than the surgeons, especially for back or neck pain and function (work, household activities, and sports); weighted κ values for agreement were low, ranging from 0.097 to 0.222."