强直性脊柱炎(AnkylosingSpondylitis,AS)是以青少年为主的常见的、慢性致残性风湿性疾病,其患病率约为0.3%[1]。几乎全部累及中轴关节及骶髂关节,也可累及髋关节、外周关节及韧带附着点等,随病情发展可引起椎间盘纤维环及其附近韧带钙化和骨性强直。首发症状变化较多,表现复杂 Ankylosing spondylitis (AS) is a common chronic disabling rheumatic disease in adolescents with a prevalence of about 0.3% [1]. Almost all involve the central axis joints and sacroiliac joints, but also can affect the hip, peripheral joints and ligament attachment points, with the progression of the disease can cause intervertebral disc annulus fibrosus and surrounding ligament calcification and ankylosis. The first symptom changes more, the performance is complicated