Lumbar Decompression (Laminectomy)

What it is

A lumbar decompression (often called a laminectomy or laminotomy) creates more room for the nerves in the lower back. I remove the bone spurs, thickened ligament, and overgrown joint tissue that are narrowing the spinal canal, while leaving the stabilizing structures of the spine in place. Nothing is fused in a decompression alone.

Who it is for

Decompression is the main operation for lumbar spinal stenosis, especially when leg pain, heaviness, or numbness with standing and walking (neurogenic claudication) keeps limiting your life despite physical therapy, medications, and injections. It is also considered for weakness that is getting worse.

In a large trial of patients with stenosis, those who had surgery reported greater improvement in pain and function over two years than those treated without surgery¹. Many people still do well without an operation, so the decision depends on how much your symptoms limit you and what you want to get back to.

Decompression alone, or decompression with fusion?

This is one of the most important decisions in lumbar surgery, and the answer depends on your spine. In a randomized trial of patients with stenosis, adding a fusion to the decompression did not improve results at two years, including in many patients with a mild slip². Another randomized trial, in patients with a stable low-grade slip (degenerative spondylolisthesis), found a modest benefit and fewer repeat operations when a fusion was added³.

In practice, I look at whether the level is stable on bending X-rays, how much slip and arthritis there is, and whether your symptoms come from the nerves alone or also from the joint itself. For many patients, decompression alone is enough. When there is instability, a fusion may be the better choice. See lumbar fusion for how that is done.

How it is done

Through an incision in the low back, the bone and ligament pressing on the nerves are removed under magnification. When it fits your anatomy, I use minimally invasive techniques, working through a tube or an endoscope to reach both sides of the canal through a smaller opening and with less disruption to the back muscles.

Recovery

Most patients are up and walking the same day, and many go home the same day or the next morning. Leg symptoms often improve early, while numbness can take longer to recover. We will go over activity, driving, and return-to-work timing for your situation at your visit.

Risks

Every operation has risks. With decompression, the main ones are a small tear in the lining around the nerves (usually repaired at the time of surgery), infection, bleeding, nerve irritation, and, over time, the narrowing coming back or the level becoming unstable. We will talk through your individual risks before any decision.