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Pain in the lower back and hip radiating down the back of the thigh into the leg, initially attributed to sciatic nerve dysfunction (hence the term), but now known to usually be due to herniated lumbar disk compressing a nerve root, most commonly the L5 or S1 root.
Farlex Partner Medical Dictionary © Farlex 2012
Inflammation of the sciatic nerve.See: sciatica
See also: neuritis
Medical Dictionary, © 2009 Farlex and Partners