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强直性脊柱炎(AS)是一种好发于青少年,主要累及中轴关节产生慢性炎症,并且可以伴发内脏或其他组织的慢性进展性风湿类疾病。其典型X线表现为骶髂关节间隙明显狭窄,关节面破坏,晚期患者脊柱呈“竹节样”强直变化。随着病情的逐步进展,脊柱强直畸形,骨骼质量明显下降,骨质疏松并且脆性增高,韧带软组织逐渐骨化导致弹性减低,在外力作用下
Ankylosing spondylitis (AS) is a chronic progressive rheumatic disease that occurs in adolescents and primarily involves chronic inflammation of the central axis joints and may accompany visceral or other tissues. The typical X-ray showed a significant stenosis of the sacroiliac joint space, joint surface destruction, advanced patients with spine showed “bamboo-like” ankylosis changes. With the gradual progress of the disease, spine ankylosis, bone quality decreased significantly, osteoporosis and increased fragility, the gradual ossification of ligament soft tissue resulting in reduced elasticity, under the action of external force