41 adolescents with idiopathic scoliosis who had undergone posterior spinal fusion 6 months to 2 years prior were randomized to receive either supervised telerehabilitation (n = 20) or no intervention (n = 21). The telerehabilitation group completed twice-weekly, one-hour online sessions for eight weeks. The primary outcomes were trunk muscle endurance and pain intensity. Secondary outcomes included trunk flexibility, functional capacity, perception of appearance, and quality of life. Outcomes were measured at baseline and at 8 weeks. Overall, the results revealed that telerehabilitation led to significantly greater improvements in endurance, flexibility, pain reduction, and SRS-30 total scores compared with controls, while functional capacity and appearance outcomes showed within-group benefits but no between-group differences. These findings suggest that structured online rehabilitation meaningfully enhances postoperative recovery in AIS.