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Peripheral neuropathies associated with rheumatoid synovial cysts of the elbow joint: three case reports
Keiichi Muramatsu1, Takanori Kojima, Koji Yoshida
1Department of Orthopedic Surgery, Yamaguchi University School of Medicine, Yamaguchi, Japan. muramatsu@yamaguchi-u.ac.jp
Abstract:
We present 3 cases with peripheral neuropathies of the median, posterior interosseous, and ulnar nerves associated with rheumatoid synovial cysts of the elbow joint. Magnetic resonance imaging and electrophysiological examination led to the final diagnosis of the relation to synovial cysts of the elbow joint. All patients underwent surgical decompression of these nerves and synovectomy of the elbow joint. Functional recovery was excellent in the 2 patients with median and posterior interosseous nerve palsy but incomplete in the patient with ulnar nerve palsy. Such neuropathies require consideration in the differential diagnosis of wrist and hand disability in patients with rheumatoid arthritis. This awareness should enhance early diagnosis and treatment by surgical decompression.
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