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目的探讨强直性脊柱炎骶髂关节病变的CT表现。方法收集分析52例强直性脊柱炎患者的骶髂关节CT资料。结果50例患者骶髂关节有异常表现,包括:早期:骨关节面受侵蚀,骨皮质局限增厚、硬化,关节间隙正常;后期:关节面呈虫蚀状改变,关节面皮质密度不规则增高,关节间隙增宽或变窄,最终关节间隙消失,关节强直。结论强直性脊柱炎患者CT检查有助于早期诊断。
Objective To investigate the CT findings of sacroiliac joint lesions in ankylosing spondylitis. Methods The CT data of sacroiliac joint in 52 patients with ankylosing spondylitis were collected and analyzed. Results Fifty patients had abnormal sacroiliac joint, including: early stage: erosion of the bone and joint surface, thickening of the cortical bone, sclerosis and normal joint space; late stage: the articular surface showed worm eclipse-like changes and the articular surface cortical density increased irregularly , Widened or narrowed joint space, the final joint space disappeared, ankylosis. Conclusion CT examination in patients with ankylosing spondylitis can be helpful for early diagnosis.