The interspinous distraction is a method for minimally invasive surgical treatment of lumbar spinal stenosis. The stenosis is decompressed using microsurgery, with radicular symptoms in combination with a radiculolysis. Then the “Utility”, a U-shaped spacer made of titanium in the appropriate size, is anchored between the adjacent spinous processes. Through this interspinous distraction, the extension or lordosis will be reduced, preventing the neurogenic claudication from becoming effective.
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