Degree of DD, type of Modic changes, and presence of disc bulges, herniations, high intensity zone (HIZ) lesions, and radial tears at all lumbar levels were assessed.

• 评估了各级椎体间盘退变的程度、改变的类型、间盘膨出、间盘突出、高信号区损害、影像学可见损害。