Neri’s sign /nā′rēz/ [Vincenzo Neri, Italian neurologist, 1880–1959] , a sign of organic hemiplegia, consisting of the spontaneous bending of the knee of the affected side as the leg is passively lifted, the patient being in the dorsal position. With the patient standing, forward bending of the trunk will cause flexion of the knee on the affected side in lumbosacral and iliosacral lesions.
