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Lumbar Laminectomy







A lumbar laminectomy is also known as an open decompression and typically performed to alleviate pain caused by neural impingement that can result from lumbar spinal stenosis. A condition that primarily afflicts elderly patients, spinal stenosis is caused by degenerative changes that result in enlargement of the facet joints.

Procedure for Lumbar Laminectomy

The lumbar laminectomy (open decompression) differs from a microdiscectomy in that the incision is longer and there is more muscle stripping. • First, the back is approached through a two-inch to five-inch long incision in the midline of the back, and the left and right back muscles (erector spinae) are dissected off the lamina on both sides and at multiple levels. • After the spine is approached, the lamina is removed (laminectomy), allowing visualization of the nerve roots. • The facet joints, which are directly over the nerve roots, may then be undercut (trimmed) to give the nerve roots more room.

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