Distal Pedicle Subtraction Osteotomy for Ankylosing Spondylitis With the Dual Complications of Andersson Lesions and Idiopathic Spinal Cord Hernia: A Rare Case Report. - Li, Junyu; Yang, Zexi; Zhang, Xinyu; Shang, Zesen; Wu, Hongyu; Zheng, Danfeng; Sun, Zhuoran; Wang, Yongqiang; Zeng, Yan; Li, Weishi; Yu, Miao (Orthopaedic Surgery, 2025)