Materials and method Among the patients with AIS who underwent surgery in our institution, 15 patients were analyzed. Minimum follow up period post-surgery was 2 years. Patients were all females with an average follow-up of 38 months. The mean patient age at surgery was 14.2±1.5 mean Cobb angle of the major curve preoperatively was 54.3±7.4 and 21.8±6.9 degrees postoperatively. We evaluated the strength, speed and agility of these patients preand postoperatively using the government-prescribed Physical Fitness Test.