Study of MRI after Upper Cervical Fusion in Rheumatoid Arthritis.
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概要
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We examined the upper cervical spine of three patients with RA by MRI before and after operation. The posterior atlanto-axial fixation was performed in one case, and occipito-cervical fusion was performed in two cases. Anterior atlanto-axial subluxation and mild compression of the spinal cord by inflammatory lesions behind odontoid process were observed in all cases before operation. However, post operative MRI showed inflammatory lesions were decreased or almost disappeared and no compression of the spinal cord was seen. We suspected the effect of the upper cervical fusion on reduction of the inflammatory lesions. These findings suggest that some RA patients with reductive atlanto-avial subluxation can be operated only by atlanto-axial fixation without laminectomy of the first cervical spine, even if preoperative MRI showed mild spinal cord compression by inflammatory lesions.
- 中国・四国整形外科学会の論文
中国・四国整形外科学会 | 論文
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