Radiological and clinical outcome of selective thoracic fusion for patients with Lenke 1C and 2C adolescent idiopathic scoliosis with a minimum follow-up of 2 years nork Kwan, Mun Keong, Chiu, Chee Kidd, Tan, Pheng Hian, Chian, Xue Han, Ler, Xin Yi, Ng, Yun Hui, Ng, Sherwin Johan, Goh, Saw Huan, Chan, Chris Yin Wei