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Case Reports
Discrepancies of MRI findings between recumbent and upright positions in atlantoaxial lesion. Report of two cases.
- Fumio Suzuki, Tadateru Fukami, Atsusi Tsuji, Kenji Takagi, and Masayuki Matsuda.
- Department of Neurosurgery, Shiga University of Medical Science, Seta-tsukinowa-cho, Otsu, Shiga, 520-2192, Japan. fsuzuki@belle.shiga-med.ac.jp
- Eur Spine J. 2008 Sep 1;17 Suppl 2:S304-7.
AbstractTwo cases of atlantoaxial (A-A) instability that showed different MRI findings between supine and upright positions are presented. The upright MRI represented the findings corresponding to their symptoms. In A-A lesions, conventional MR images taken in the supine position do not always explain the pathophysiological consequences. The MR images taken in the upright position disclose the actual spinal pathophysiology with gravitational effects.
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