Scoliosis uses the 45 to 50° threshold as a result of the well-documented, plus or minus 5° measurement error that can occur while measuring Cobb angles. Surgeons who are specialized in spine surgery perform surgery for scoliosis. To completely straighten a scoliotic spine is usually impossible, but for the most part, significant corrections are achieved. The two main types of surgery are: One or both of these surgical procedures may be needed. The surgery may be done in one or two stages and, on average, takes four to eight hours. A 50-year follow-up study published in the "Journal of the American
Sociology of the body such as anorexia and bulimia, and on the other end, there is a growing epidemic of obesity, especially in the US. Both ideals have increased widely over the last few decades due in part to growing mass media coverage in which there are norms within society and the always growing pressure to either look and feel a certain way. Sociology of the body Sociology of the body is a branch of sociology studying the representations and social uses of the human body in modern societies. According to Thomas Laqueur, prior to the eighteenth century the predominant model for a social