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Paralysis or weakness of the dorsiflexor muscles of the foot and ankle, resulting in dragging of the foot and toes.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
foot-dropNeurology A manifestation of peripheral neuropathy, characterized by an inability to actively dorsiflex and evert the foot at the ankle; the foot drops when the Pt lifts the foot off the ground in the swing phase of ambulation–thus requiring a high stepping gait; it is associated with paresthesiae of feet, loss of vibratory and position sense, spasticity, exaggerated tendon reflexes in legs Etiology Diabetic mononeuropathy, Charcot-Marie-Tooth syndrome, severe vitamin B12 deficiency, residual poliomyelitis, old injuries to lateral popliteal–LP or sciatic nerves, cauda equina tumor, massive interverbral disc prolapse at L5S1 level and, formerly in India, LP nerve paralysis due to leprosy. See Wrist drop.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.