Can the paresis be completely removed?

In principle, peroneal paresis has a good prognosis, for example, it can also resolve spontaneously. However, the causes of peroneal paresis and thus the degree of impairment of the nerve are decisive: if the nerve is completely torn, for example, peroneal paresis is usually permanent. If an underlying disease, such as a tumor, is responsible for peroneal paresis, it can disappear completely after the tumor is removed.

Alternative treatment options

In the case of peroneal paresis, tapes can support the lifting of the foot. To do this, two parallel strips of tape are stuck from the outer edge of the foot (just below the little toe) diagonally across the back of the foot to the inner ankle. So-called Peroneues splints can also be used – these not only make it easier to lift the foot but also mechanically prevent the tip of the foot from sinking down. Alternatively, functional electrical stimulation with a mobile foot lifting system is suitable. All three methods improve the gait pattern and gait safety.

What is peroneal paresis?

The leg nerve “Nervus peroneues communis” originates from the sciatic nerve in the area of the thigh. From there it runs from the knee to the foot. The nerve consists of two parts, the superficial fibula nerve (=superficial peroneal nerve) and the deep fibula nerve (=profound peroneal nerve).

Both parts together enable the lifting of the foot (=dorsal extension) and the outer lateral edge of the foot (=pronation), as well as the extension of the toes. If one or even both parts of the nerve are damaged, this is called peroneal paresis. Paralysed are then those muscles that are supplied by this nerve.

If the deep part is affected, the stretching process of the lower leg is disturbed: patients can no longer lift their foot. A pointed foot is formed. The affected person has to raise his knee abnormally with every step so that his toes do not drag on the ground.

However, if the superficial part of the foot is affected, the lateral edge of the foot can no longer be lifted. This disturbs the inward rotation of the foot. If both parts are affected, the symptoms occur in combination. In all three cases, sensitivity disorders may also occur.