 The aims of this study are: 1 To compare the degree of Cobb angle and truncal balance maintenance between immediate removal and gradual brace weaning protocols for AIS patients who have completed brace treatment; 2 To determine factors for poor maintenance of Cobb angle and truncal balance after brace weaning; 3 To determine if the current standardized criteria for initiating brace weaning is appropriate; and 4To identify the most cost-effective bracing weaning protocol from health-care provider perspective. 