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Significance of sacroiliac joint aerocele in diagnosis of ankylosing spondylitis

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Abstract

To explore the significance of sacroiliac joint aerocele in the diagnosis of ankylosing spondylitis, the data of 196 patients with ankylosing spondylitis (AS) were collected during December of 2008 to May of 2009. And 50 patients with osteoarthritis (OA), 15 patients with sclerosing osteitis (SO) and 47 patients with sacroiliac joint tumors were investigated as the control groups. The feature of sacroiliac joint aerocele in computed tomography (CT) images was observed carefully. In AS group there were 130 patients (66.3%) diagnosed as AS according to CT results, and 32 of them (24.6%) were observed with aerocele within sacroiliac joint cavity, majority of whom were earlier AS patients with slight bone destruction. Other 66 patients were diagnosed as early AS according to magnetic resonance imaging (MRI) and ultrasonography. CT examination showed that the 66 patients did not have apparent bone destruction, of whom, 26 (39.4%) patients had aerocele within sacroiliac joint cavity. Among the control groups of 15 (15/50, 30.0%) patients with OA, 5 (5/15, 33.3%) patients with SO were observed sacroiliac joint aerocele. The 47 patients with sacroiliac joint tumors were observed with bone or cartilage destruction, but without signs of sacroiliac joint aerocele. The sacroiliac joint aerocele in CT images of AS patients usually appeared as spots, streaks, small or larger round blocks, and it often happened in patients with earlier stage of diseases. Sacroiliac joint aerocele may be useful to early diagnosis of AS.

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Authors and Affiliations

  1. Department of Nephrology and Rheumatology, the Sixth People’s Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China

    Feng Wang  (王 锋) & Nian-song Wang  (汪年松)

  2. Department of Radiology, the Tenth People’s Hospital Affiliated to Tongji University, Shanghai, 200072, China

    Bing-hui Zhao  (赵炳辉)

Authors
  1. Feng Wang  (王 锋)
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  2. Bing-hui Zhao  (赵炳辉)
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  3. Nian-song Wang  (汪年松)
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Corresponding author

Correspondence to Bing-hui Zhao  (赵炳辉).

Additional information

Foundation item: the Program for Excellent Young Talents of the Shanghai Sixth People’s Hospital (No. 1402)

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Wang, F., Zhao, Bh. & Wang, Ns. Significance of sacroiliac joint aerocele in diagnosis of ankylosing spondylitis. J. Shanghai Jiaotong Univ. (Sci.) 16, 636–640 (2011). https://doi.org/10.1007/s12204-011-1201-9

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  • DOI: https://doi.org/10.1007/s12204-011-1201-9

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