Acute Lumbar Strain
From Expert System: Low Back Pain
Acute lumbar strain is self-limited low back pain associated with muscle spasm with limitation of motion of varying severity. This is usually brought on by some type of sudden overexertion while lifting, bending, straining, or abrupt movement. The symptoms may occur immediately or develop over the course of a day as muscle spasm increases. In the absence of fracture or herniated disc, symptoms subside gradually in days or sometimes longer, up to 2-4 weeks occasionally. If symptoms persist, worsen, or are the result of a severe injury such as blunt trauma or a fall, X-rays are indicated to rule out a fracture. In most cases, CT or MRI studies of the spine are not indicated unless the pain persists beyond a month or so or sciatic sysmptoms develop. Acute lumbar strainIt is subject to recurrence, and is by far the most common cause of lower back pain.
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