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目的:探讨X线和CT扫描在强直性脊柱炎骶髂关节病变上的诊断价值。方法:回顾性分析2009年3月～2010年5月笔者所在骨科门诊收治的48例AS骶髂关节病变患者临床资料,参照骶髂关节病变标准对影像学表现进行分析。结果:早期病变(0级～Ⅱ级)CT检出率明显高于X线检查。在病变征象检出率上,关节面狭窄、关节面侵蚀和关节强直的检查率,CT分别为25.0%、31.2%和20.8%,高于X线检查的11.8%、22.9%和14.6%,对比差异有统计学意义(P<0.05)。结论:CT扫描对早期骶髂关节病变相较X线,更能清晰地显示局部细微病变情况,且对病变部位的检出率更高,诊断更为精确,可作为临床AS骶髂关节性病变诊断的首选。
Objective: To investigate the diagnostic value of X-ray and CT scan in sacroiliac joint of ankylosing spondylitis. Methods: The clinical data of 48 patients with AS sacroiliac joint lesions admitted to our orthopedic clinic from March 2009 to May 2010 were analyzed retrospectively. The imaging findings were analyzed according to the criteria of sacroiliac joint disease. Results: The detection rate of early lesions (grade 0 ~ grade Ⅱ) was significantly higher than that of X - ray examination. In the detection rate of lesions, the detection rate of articular surface stenosis, articular surface erosion and ankylosis were 25.0%, 31.2% and 20.8% respectively, which were 11.8%, 22.9% and 14.6% higher than X-ray examination respectively The difference was statistically significant (P <0.05). Conclusion: Computed tomography (CT) is superior to X-ray in the early stage of sacroiliac joint disease, it can clearly show the local minor lesions, and the detection rate of the lesion is higher and the diagnosis is more accurate. It can be used as clinical AS sacroiliac joint disease The preferred diagnosis.