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目的探讨强直性脊柱炎(AS)受累骶髂关节、腰椎小关节及髋关节的病变CT表现特点,以提高诊断与鉴别诊断水平。方法 2011年1月-10月对临床确诊的强直性脊柱炎患者44例骶髂关节、28例腰椎及14例髋关节行CT扫描,回顾性分析骶髂关节、腰椎小关节及髋关节的CT表现。结果 AS患者的CT表现特点为病变主要累及骶髂关节滑膜部的髂骨侧,腰椎小关节及髋关节则表现为关节间隙改变、关节面毛糙及囊状破坏、面下骨硬化或吸收等改变。结论 AS骶髂关节、腰椎小关节及髋关节的CT表现具有一定特征,CT具有重要的诊断及鉴别诊断价值。
Objective To investigate the CT features of sacroiliac joint, lumbar facet joint and hip joint affected by ankylosing spondylitis (AS) in order to improve the diagnostic and differential diagnosis. Methods From January to October 2011, 44 patients with clinically diagnosed ankylosing spondylitis underwent CT scan of the sacroiliac joint, 28 patients with lumbar vertebrae and 14 patients with hip joint. The CT findings of sacroiliac joint, lumbar facet joint and hip joint were analyzed retrospectively which performed. Results The CT features of patients with AS mainly involved the iliac side of the sacroiliac joint synovium, the lumbar facet joint and the hip joint were characterized by joint space changes, rough and sacral articular surface destruction, subaxial surface sclerosis, or absorption change. Conclusions The CT features of sacroiliac joint, lumbar facet joint and hip joint have certain characteristics. CT has important diagnostic and differential diagnostic value.