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DictionarySeesignLasegue sign
La·sè·gue sign (lah-seg'), when a subject is supine with hip flexed and knee extended, dorsiflexion of the ankle causing pain or muscle spasm in the posterior thigh indicates lumbar root or sciatic nerve irritation.Lasègue sign Neurology A clinical sign used to distinguish hip from low back pain. See Low back pain. La·sègue sign (lah-seg' sīn) When a subject is supine with hip flexed and knee extended, dorsiflexion of the ankle causing pain or muscle spasm in the posterior thigh indicates lumbar root or sciatic nerve irritation. Lasègue, Ernest C., French physician, 1816-1883. Lasègue disease - obsolete eponym for delusions of persecution.Lasègue maneuverLasègue sign - when patient is supine with hip flexed, dorsiflexion of the ankle causes pain or muscle spasm in the posterior thigh indicates lumbar root or sciatic nerve irritation.Lasègue syndrome - in conversion hysteria, inability to move an anesthetic limb except under control of the sight.LegalSeeSign |