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Lumbar Spinal Fusion (Arthrodesis)

Lumbar spinal fusion is surgery to join, or fuse, two or more vertebrae in the low back.

Spinal fusion is major surgery, usually lasting several hours. There are different methods of spinal fusion.

  • Bone is taken from the pelvic bone or from a bone bank. The bone is used to make a bridge between vertebrae that are next to each other. This bone graft helps new bone grow.
  • Metal implants are usually used to hold the vertebrae together until new bone grows between them.

What To Expect After Surgery

You will need to be watched in the hospital for a few days after surgery.

Bed rest is not usually needed while you recover at home.

Your doctor may recommend that you wear a back brace while you recover.

Rehabilitation can take a long time. It includes walking, riding a stationary bike, swimming, and similar activities.

Why It Is Done

Spinal fusion may be done by itself or along with surgery to remove bone and tissue that are narrowing the spinal canal and squeezing the spinal cord and/or the spinal nerves.

It may be done as a follow-up after surgery that was done to treat problems such as spinal stenosis, herniated discs camera.gif, injuries, infection, and tumors.

Spinal fusion was first used to treat fractures or other problems. It is now also used to treat age-related spinal problems and spinal stenosis.

How Well It Works

Spinal fusion is often needed to keep the spine stable after injury, infection, or a tumor.

But there is not a lot of research about how well it works for other spinal problems. In general, studies do not show a clear difference between spinal fusion and intense rehabilitation for treating chronic low back pain from degenerative changes in the spine.1

As you decide about having spinal fusion, talk with your doctor about the benefits and risks. The surgery costs a lot and has serious risks. Although this type of surgery is common, there is no guarantee it will work to relieve your pain.

Risks

The risks of this surgery depend on your age and overall health, what you're having the surgery for, and the type of procedure you have.

Risks include:

  • Pain at the bone graft site.
  • Failure of the fusion, breakage of metal implants, or both.
  • Blood clots that may also lead to pulmonary embolism.
  • Nerve injury.
  • Graft rejection.
  • Infection.

What To Think About

Because there are so many things to consider when spinal fusion is recommended, seek a second opinion before making a decision.

Complete the surgery information form (PDF)(What is a PDF document?) to help you prepare for this surgery.

Citations

  1. Chou R, et al. (2009). Interventional therapies, surgery and interdisciplinary rehabilitation for low back pain: An evidence-based clinical practice guideline from the American Pain Society. Spine, 34(10): 1066–1077.

ByHealthwise Staff
Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical ReviewerRobert B. Keller, MD - Orthopedics
Last RevisedFebruary 13, 2012

WebMD Medical Reference from Healthwise

Last Updated: February 13, 2012
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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