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Complications

By Mayo Clinic staff

Your spinal cord doesn't extend into the lower portion of your spinal canal. Just below your waist, the spinal cord separates into a group of long nerve roots (cauda equina) that resemble a horse's tail. Rarely, disk herniation can compress the entire cauda equina. Emergency surgery may be required to avoid permanent weakness or paralysis.

Seek emergency medical attention if you have:

  • Worsening symptoms. Pain, numbness or weakness may increase to the point that you can't perform your usual daily activities.
  • Bladder or bowel dysfunction. People who have the cauda equina syndrome may become incontinent or have difficulty urinating even with a full bladder.
  • Saddle anesthesia. This progressive loss of sensation affects the areas that would touch a saddle — the inner thighs, back of legs and the area around the rectum.
References
  1. Chad DA. Disorders of nerve roots and plexuses. In: Bradley WG, et al. Neurology in Clinical Practice. 5th ed. Philadelphia, Pa.: Butterworth Heinemann Elsevier; 2008. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-0-7506-7525-3..50117-5&isbn=978-0-7506-7525-3&sid=1063623544&type=bookPage&sectionEid=4-u1.0-B978-0-7506-7525-3..50117-5--cesec12&uniqId=221226396-3#4-u1.0-B978-0-7506-7525-3..50117-5--cesec12. Accessed Oct. 5, 2010.
  2. Herniated disk. American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=A00334. Accessed Oct. 5, 2010.
  3. Herniated disc. American Association of Neurological Surgeons. http://www.aans.org/Patient%20Information/Conditions%20and%20Treatments/Herniated%20Disc.aspx. Accessed Oct. 5, 2010.
  4. Herniated lumbar disc. North American Spine Society. http://www.spine.org/Documents/herniated_lumbar_disc_2006.pdf. Accessed Oct. 6, 2010.
  5. Herniated cervical disc. North American Spine Society. http://www.spine.org/Documents/herniated_cervical_disc_2006.pdf. Accessed Oct. 6, 2010.
  6. JAMA patient page: Herniated lumbar disks. Journal of the American Medical Association. 2006;296:2512.
  7. Cauda equina syndrome. American Association of Neurological Surgeons. http://www.aans.org/Patient%20Information/Conditions%20and%20Treatments/Cauda%20Equina%20Syndrome.aspx. Accessed Oct. 6, 2010.
  8. Neurological diagnostic tests and procedures. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/misc/diagnostic_tests.htm. Accessed Oct. 6, 2010.
  9. Chou R, et al. Diagnosis ad treatment of low back pain: A joint clinical practice guideline from the American College of Physicians and the American Pain Society. Annals of Internal Medicine. 2007;147:478.
  10. Robinson J, et al. Treatment of cervical radiculopathy. http://www.uptodate.com/home/index.html. Accessed Oct. 7, 2010.
  11. Levin K, et al. Lumbosacral radiculopathy: Prognosis and treatment. http://www.uptodate.com/home/index.html. Accessed Oct. 7, 2010.
  12. Dworkin RH, et al. Pharmacologic management of neuropathic pain: Evidence-based recommendations. Pain. 2007;132:237.
  13. Shelerud RA (expert opinion). Mayo Clinic, Rochester, Minn. Oct. 13, 2010.
DS00893 Dec. 18, 2010

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