Multiple Sclerosis
My MS Treatments

Equinovarus Spasticity



Foot drop, or drop foot, is an abnormal neuromuscular disorder that affects a patients ability to raise their foot at the ankle. It is further characterised by the inability to point the toes toward the body, or move the foot inward or outward.

Walking becomes a problem as the patient has a tendency to drag the foot which may cause tripping or stumbling. The patient may also develop a high-stepping walk called a Steppage Gait or Footdrop Gait.

Equinovarus spasticity is usually associated with damage to the peroneal nerve, although in MS it is more likely to be due to demyelination of the sciatic nerve. The sciatic nerve splits, in the thigh, into the posterior tibial nerve and the peroneal nerve.

Possible Causes

Patients may be fitted with an Ankle Foot Orthosis (AFO), a brace, usually plastic, worn on the lower leg and foot to support the ankle.

Functional Electrical Stimulation is a method that can be used to help footdrop in MS by lifting the foot during the swing phase of gait to avoid the toes catching on the floor leading to possible falls. Electrical signals are applied artificially to the appropriate weak muscle and this causes the foot to lift and this counteracts the weakness. This may be fitted to the leg externally or it may be surgically implanted.

Physiotherapy may be employed to incorporate gait training.


Ankle Foot Orthosis Definition 
Spine Universe

DISCLAIMER: The content of this site does not represent a qualified medical opinion. It is simply the information amassed by an MS patient while trying to understand this condition. You should seek the advice of your medical practitioner or neurologist before trying any treatment you may read about on this site. I am not a doctor, I am a patient.

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Page last Edited: 20 Jan 2014