Back pain and sciatica
Description
An in-depth report on the causes, diagnosis, treatment, and prevention of back pain, including sciatica.
Alternative Names
Herniated disk; Sciatica
Prognosis
Most people with acute low back pain are back at work within a month and fully recover within a few months. According to one study, about a third of patients with uncomplicated low back pain significantly improved after a week; two thirds recovered by 7 weeks.
However, studies now suggest that up to 75% of patients suffer at least one recurrence of back pain over the course of a year. In another study, after 4 years, less than half were symptom-free. Some doctors are approaching the problem as one that is not necessarily curable and which needs a consistent on-going approach.
Specific conditions can determine the rate of improvement:
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In the majority of patients with herniated disks, the condition improves (although the actual physical improvement may be slower than the reduction in pain). Researchers attempted to identify factors most likely to predict an elevated risk for recurrent pain and found that only depression was a significant factor in the majority of those who had not recovered.
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Spinal stenosis stabilizes in about 70% of cases and worsens in 15%.
Effects on Work
Studies have found that when people stay home because of back injury, only 65% are back at work within a week. Nearly 14% are still absent at one month. If someone is on disability for more than 6 months, the chance of them returning to work is only 50%.
Low back pain accounts for significant losses in work days and dollars. In 1990, it cost the U.S. $23 billion in direct medical costs and possibly as much as $85 billion in total costs (such as lost productivity). Chronic back pain has become one of the most expensive causes of disability among workers under the age of 45. One study found that, although severe back pain comprised only 10% of workers compensation cases, it accounted for 86% of compensation costs.
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Review Date: 3/19/2007
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Reviewed By: Harvey Simon, MD, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital
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