Proximal junctional kyphosis following correction surgery in the Lenke 5 adolescent idiopathic scoliosis patient

Greater postoperative PJA, disruption of junctional ligaments, UIV at lower thoracic levels were the main risk factors for PJK in Lenke 5 AIS patients. Recommedation: Preserve junctional ligaments in those individuals with UIV located in the lower thoracic region.