Spine Surgery: Posterior Lumbar Laminectomy

Lower back decompression surgery using posterior lumbar laminectomy, instrumented laminectomy and fusion, and uninstrumented laminectomy and fusion

Posterior Lumbar Laminectomy

A posterior lumbar laminectomy, which is also called a decompression, is done to treat pain caused by degenerative conditions in the lower back. Disc degeneration, bone spurs, and other conditions can cause narrowing and pressure on the spinal nerves (radiculopathy) exiting the spine. A laminectomy procedure removes part of the vertebral lamina to reduce the pressure.

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View posterior lumbar laminectomy animation

Posterior Lumbar Laminectomy with Instrumentation and Fusion

After removing bone during a posterior lumbar laminectomy, bone grafts can be added to fuse the vertebrae and support the spine. In instances where there is instability, instrumentation is added to provide greater stability to the spine.

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View instrumented laminectomy, fusion animation

Posterior Lumbar Laminectomy with Fusion, without Instrumentation

Following a posterior lumbar laminectomy, bone grafts can be used for fusing vertebrae to stabilize and support the spine. In patients with little or no instability, where the vertebrae, discs, and surrounding tissues fit tightly together, adding instrumentation is not necessary and the bone grafts can sufficiently stabilize the spine.

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View uninstrumented laminectomy, fusion animation


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