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Home > Medical Reference > Encyclopedia (English)

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Diskectomy - Overview

Alternative Names

Spinal microdiskectomy; Microdecompression; Laminotomy; Disk removal; Spine surgery - diskectomy

Definition of Diskectomy:

Diskectomy is surgery to remove all or part of a cushion that helps protect your spinal column. These cushions, called disks, separate your spinal bones (vertebrae).

When one of your disks herniates (moves out of place), the soft gel inside pushes through the wall of the disk. The disk may then place pressure on the spinal cord and nerves that are coming out of your spinal column.

Description:

A surgeon may perform disk removal (diskectomy) in different ways.

  • Microdiskectomy: When you have a microdiskectomy, the surgeon does not need to do much surgery on the bones, joints, ligaments, or muscles of your spine.
  • Diskectomy in the lower part of your back (lumbar spine) may be part of a larger surgery that also includes a laminectomy, foraminotomy, or spinal fusion.
  • Diskectomy in your neck (cervical spine) is most often done along with laminectomy, foraminotomy, or fusion.

Microdiskectomy is done in a hospital or outpatient surgical center. You will be given spinal anesthesia or general anesthesia (asleep and pain-free).

  • The surgeon makes a small (1 to 1-1/2 inch) incision (cut) on your back and moves the back muscles away from the spine. The doctor uses a special microscope to see the problem disk or disks and nerves during surgery.
  • The surgeon finds the nerve root and moves it away. Then the surgeon removes the injured disk tissue and pieces. The surgeon puts the back muscles back in place, and closes the wound with stitches or staples.
  • The surgery takes about 1 to 2 hours.

Diskectomy and laminotomy is done in the hospital, using general anesthesia (asleep and pain-free).

  • The surgeon makes a larger cut on your back over the spine. Muscles and tissue are moved to expose your spine.
  • A small part of the lamina bone (part of the vertebrae that surrounds the spinal column and nerves) is cut away. The opening may be as large as the ligament that runs along your spine. The surgeon cuts a small hole in the disk that is causing your symptoms and removes material from inside. Other fragments of the disk may also be removed.

Why the Procedure Is Performed:

Diskectomy is done when a herniated disk makes you have:

  • Leg pain or numbness that is very bad or is not going away, making it hard to do daily tasks
  • Weakness in muscles of your lower leg or buttocks
  • An inability to control bowel movements or urination

If you are having problems with your bowels or bladder, or the pain is so bad that strong pain drugs do not help, you will probably have surgery right away.

Most other people with low back or neck pain, numbness, or even mild weakness are often first treated without surgery. Anti-inflammatory medications [such as ibuprofen (Advil, Motrin) or naproxen (Aleve, Naprosyn)], physical therapy, and exercise are often first treatments. Over time, many of the symptoms of low back pain caused by a herniated disc often get better or go away without surgery.

You should talk with your doctor about what is right for you.

  • Reviewed last on: 3/4/2009
  • 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.

References

Chou R, Qaseem A, et al. Diagnosis and treatment of low back pain: a joint clinical practice guideline from the American College of Physicians and the American Pain Society. Ann Intern Med. 2007;147(7):478-491.

Gregory DS, Seto CK, Wortley GC, Shugart CM. Acute lumbar disk pain: Navigating evaluation and treatment choices. American Family Physician. Oct 2008;78(7).

Williams KD, Park AL. Lower back pain and disorders of intervertebral discs. In: Canale ST, Beatty JH, eds. Campbell's Operative Orthopaedics. 11th ed. Philadelphia, Pa: Mosby Elsevier; 2007:chap 39.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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