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The straight-leg-raising test: a review*
The Journal of Orthopaedic and Sports Physical Therapy
|January 1, 1981
Summary
The straight-leg-raising test, often used for disc lesions, has limited value. It poorly differentiates herniated discs from other causes of low back pain and sciatica.
Area of Science:
- Orthopedics
- Neurology
- Physical Therapy
Background:
- The straight-leg-raising (SLR) test is commonly used to diagnose lumbar disc herniation.
- A positive SLR test is often interpreted as a sign of a
- disc lesion.
Purpose of the Study:
- To review the literature on the straight-leg-raising test.
- To clarify the mechanisms and diagnostic value of the SLR test for low back pain and sciatica.
Main Methods:
- Literature review of studies concerning the straight-leg-raising test.
- Analysis of the diagnostic accuracy and interpretation of the SLR test.
Main Results:
- A positive straight-leg-raising test has minimal value in differentiating patients with herniated discs.
- The SLR test is not highly effective in distinguishing herniated disc cases from other causes of low back pain and sciatica.
Conclusions:
- The routine interpretation of a positive SLR test as indicative of a "disc lesion" may be inaccurate.
- Clinicians should exercise caution when using the SLR test as the sole diagnostic tool for low back pain and sciatica.
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