A to Z of MS
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A to Z of MS Foot drop
Foot drop, or dropped foot, is a symptom experienced by some people with multiple sclerosis. It is caused by weakness in the ankle that means the foot drags along the ground or hangs down when walking. People with MS with foot drop are more vulnerable to tripping and falling. Walking also uses more energy and people may alter their gait to compensate, commonly lifting their leg higher.
Foot drop can be treated using functional electrical stimulation (FES). This uses small electrical charges to force the foot into a more natural position for walking. An ankle splint (orthosis) can also be used to hold the foot in a rigid position.