Laminectomy


Definition

Laminectomy is surgery to remove the lamina, part of the bone that makes up a vertebra, or bone spurs in your back. The procedure can take pressure off your spinal nerves or spinal canal.


Alternative Names

Lumbar decompression; Decompressive laminectomy; Spine surgery - laminectomy


Description

Laminectomy opens up your spinal canal so your spinal nerves have more room. It may be done along with a diskectomy, foraminotomy, and spinal fusion. You will be asleep and feel no pain (general anesthesia).

  • You will lie face down on the operating table. The surgeon will make an incision (cut) in the middle of your back or neck.
  • The skin, muscles, and ligaments are moved to the side. Your surgeon may use a surgical microscope to see inside your back.
  • Part or all of the lamina bones may be removed on both sides of your spine, along with the spinous process, the sharp part of your spine.
  • Your surgeon will remove any small disk fragments, bone spurs, or other soft tissue.
  • The surgeon may also do a foraminotomy (to widen the opening where nerve roots travel out of the spine) at this time.
  • Your surgeon may do a spinal fusion to make sure your spinal column is stable after surgery.
  • Surgery takes 1 to 3 hours.

Why the Procedure Is Performed

Laminectomy is often done to treat spinal stenosis. The procedure removes bones and damaged disks, and makes more room for your spinal nerve and column.

Your symptoms may be:

  • Pain or numbness in one or both legs. You may feel weakness or heaviness in your buttocks or legs. You may have problems emptying or controlling your bladder and bowel.
  • You are more likely to have symptoms, or worse symptoms, when you are standing or walking.

You and your doctor can decide when you need to have surgery for these symptoms. Spinal stenosis symptoms often become worse over time, but this may happen very slowly.

When your symptoms become more severe and interfere with your daily life or your job, surgery may help.


References

Curlee PM. Other disorders of the spine. In: Canale ST, Beatty JH, eds. Campbell's Operative Orthopaedics. 11th ed. Philadelphia, Pa: Mosby Elsevier; 2007:chap 41.

Weinstein JN, Tosteson TD, Lurie JD, et al. Surgical versus nonsurgical therapy for lumbar spinal stenosis. N Engl J Med. 2008;358:794-810.

Weinstein JN, Tosteson TD, Lurie JD, et al. Surgical versus nonoperative treatment for lumbar spinal stenosis four-year results of the Spine Patient Outcomes Research Trial. Spine (Phila Pa 1976). 2010 Jun 15;35(14):1329-38.


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Review Date: 12/20/2010
Reviewed By: C. Benjamin Ma, MD, Assistant Professor, Chief, Sports Medicine and Shoulder Service, UCSF Dept of Orthopaedic Surgery. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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Last Updated 5/16/2011
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