Abstract
We reviewed the clinical presentations, radiological studies, and operative and histologic findings in five patients with lumbar intraspinal synovial cysts treated surgically. The mean age at operation was 51.6 years, and the mean follow-up period was 16 months. All patients presented with radiculopathy and one with cauda equina syndrome. Ring enhancement was characteristic to diagnosis by magnetic resonance imaging. Most of the lumbar intraspinal synovial cysts were associated with significantly degenerated facet joints. Surgical decompression and resection of the synovial cysts were successful for relieving symptoms completely.
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