Don’t order an EMG for low back pain unless there is leg pain or sciatica.

September 29, 2014

Utilization of EMG studies for diagnosis of low back pain without leg pain is not supported. EMG studies have good specificity for the detection of lumbosacral radiculopathy in sciatica patients when appropriate electrodiagnostic criteria are used.


Sources

Tong HC. Specificity of needle electromyography for lumbar radiculopathy in 55- to 79-yr-old subjects with low back pain and sciatica without stenosis. Am J Phys Med Rehabil. 2011 Mar;90(3):233–8.