论文部分内容阅读
目的对照研究10～20岁幼年强直性脊柱炎(JAS)患者与同龄正常志愿者骶髂关节的CT表现。资料与方法JAS患者共113例,男101例,女12例。就诊年龄10～20岁;发病年龄4～16岁。随机选择30名同龄无脊柱关节病症状的志愿者作为对照。所有被检查者均行骶髂关节CT扫描。结果对照组(66.67%)与JAS组(21.68%)均可见到骶髂关节内的真空现象。对照组与JAS组均可见到骶骨侧关节面第2、3骶骨分节处(分别为3.33%、6.64%)和前上缘(分别为15%、25.66%)的骨骺影。对照组误认为JAS的征象还有骶骨分节处(33.33%)及骶骨前上缘(3.33%)关节面的局限性凹陷、骶骨侧关节面的侵蚀样改变(6.67%)、髂骨侧关节面囊样改变(8.33%)和局限性凹陷(3.33%)。与JAS骶髂关节炎的不同是骶骨侧及髂骨侧关节面的局限性凹陷皮质完整,无侵蚀样改变及周围硬化,骶骨侧关节面侵蚀样改变不伴有髂骨侧关节面的骨侵蚀,髂骨侧囊样改变周围无硬化、不伴骨侵蚀。结论少数正常青少年的骶髂关节CT表现有类似侵蚀样改变、囊样改变和局限性凹陷,与JAS骶髂关节炎表现类似,但可以区别。
Objective To compare the CT findings of sacroiliac joint between 10 ~ 20-year-old infants with ankylosing spondylitis (JAS) and normal volunteers of the same age. Materials and Methods A total of 113 JAS patients, 101 males and 12 females. Visiting age 10 to 20 years; onset age 4 to 16 years. Thirty randomly selected volunteers with no symptoms of spondylosis at the same age were used as controls. All subjects underwent sacroiliac joint CT scan. Results In the control group (66.67%) and JAS group (21.68%), the vacuum in the sacroiliac joint was observed. In the control group and JAS group, the epiphyseal shadow of the sacrum and the sacral joint at the sacrum and the sacrum in the sacrum were observed at the sacrum and the sacrum at the second and third sacral joints (3.33% and 6.64%, respectively) and the anterior superior margin (15% and 25.66%, respectively). The control group misidentified the signs of JAS as the limitations of the articular surface at the sacral segment (33.33%) and sacral anterior margin (3.33%), erosion-like changes in the sacral articular surface (6.67%), iliac articular Facial cyst changes (8.33%) and limitations of depression (3.33%). Unlike JAS sacroiliac arthritis, the limitations of the sacral and iliac articular surfaces include intact, non-erodible cicatrization, and peripheral sclerosis, with erosion-like alterations of the sacral lateral articular surface not associated with erosion of the iliac articular surface , Iliac lateral capsule-like changes around the non-hardening, not accompanied by bone erosion. Conclusions The CT findings of sacroiliac joint in a minority of normal adolescents are similar to those of JAS sacroiliac arthritis with similar erosion-like changes, cystoid changes and localized degeneration, but they can be distinguished.