What are the symptoms of common peroneal nerve injury?

Many people ignore the importance of protective measures when exercising, so it is easy to cause trauma during exercise. Some people experience numbness during exercise, wrists and ankles, etc., which is called common peroneal nerve injury. Injury to the common peroneal nerve not only causes loss of motor function, but also causes severe pain and discomfort.

Common peroneal nerve injury is caused by trauma, which occurs in patients with foot drop and decreased and absent foot function on the lateral side of the calf. After the common peroneal nerve injury, the first measures should be taken in time, and if it is not carried out in time, the patient may have muscle atrophy.

Common peroneal nerve injury is mainly diagnosed based on the history of trauma and clinical manifestations, and after the diagnosis of this disease, the best measures should be taken in time. Surgical exploration and surgery** at an early stage can alleviate foot drop and avoid the development of progressive deformities.

For the symptoms of common peroneal nerve injury, many patients still lack a certain amount of cognition and understanding, so let's take a look at the symptoms of superficial peroneal nerve injury!

1. Patients with partial injury will have numbness on the outside of the foot, and the numbness will gradually spread to the toes and feet with the aggravation of the disease.

2. Patients with superficial peroneal nerve injury will have dorsal flexion of the foot and dysfunction of the dorsum of the foot being turned out, and patients with more severe conditions may also have foot dropping and deformity.

3. After the superficial peroneal nerve injury, the patient will lose the function of the toes, and it is difficult for the toes to flex.

4. Patients with severe superficial peroneal nerve injury will have sensory impairment on the anterolateral and medial calves, which will not only affect the activities of the patient's limbs, but also cause great damage to the patient's body.

5. Patients will have obvious sensory disorders, and there will be disappearance of sensation in the feet and calves.

After the occurrence of superficial peroneal nerve injury, in addition to timely diagnosis and treatment measures, it is also very important to adjust dietary habits and plan life during the first disease. During the disease, you should eat more foods rich in protein, vitamins and choline, which can promote the improvement of the condition. **Do not have irritability and depressed emotions during the illness, bad emotions are not conducive to the improvement of the condition.

Maintaining a happy mood will help you better fight the disease.

The common peroneal nerve is a nerve at the bone neck, which descends along the superior and outer edge of the popliteal fossa through the inner edge of the biceps femoris muscle, goes behind the fibular head and bypasses the peroneal neck, and anteriorly passes through the beginning of the peroneal longus muscle, and is divided into two terminal branches of the superficial peroneal nerve and the deep peroneal nerve. The clinical manifestation of nerve damage here is generally ploptosis deformity, in which the patient walks with his feet raised high and a spanning gait in order to prevent his toes from dragging on the ground; The feet and toes cannot be dorsally extended, nor can they be abducted or valgus; Loss of sensation on the dorsum of the foot and anterolateral aspect of the little toe.

The fibular perone is one of the long bones of the lower leg of the lower limbs. Thinner, on the outside of the calf. The upper end is enlarged called the fibular head, and the inner and upper joints meet the fibular surface of the tibia.

The lower end is more enlarged called the lateral malleolus, and its medial surface has a flat lateral malleolar joint surface, which participates in the formation of the ankle joint. This bone is slender and plays an auxiliary and supporting role. This bone injury is more common, and simple fibular fracture has little impact on the weight bearing of the lower limbs, but there are more nerves and blood vessels between the tibia and fibula, which are easy to be damaged at the same time, so the treatment should still be very careful.

1. The fibula is in anterior position (Fig. 6-1-35). On the anteroposterior fibula radiograph, the fibula cephalic head partially overlaps the lower part of the lateral tibial condyle. The upper part of the fibula head protrudes upwards and is called the fibular styloid process. The cancellous matter inside the fibular cephalic head is sparse, and sometimes there are areas of local density.

The fibular diaphysis is particularly elongated, with typical tubular opacities, with a thicker lateral cortex, thinner medial cortex, and sometimes a less dense edge that is interosseous crest.

The lower end of the fibula forms the lateral malleolus, which is triangular with the tip facing downward, and its inner surface corresponds to the talar trochlea and participates in the formation of the ankle joint. A lighter groove is sometimes seen at the lower end of the lateral malleolus, which is called the lateral malleolus sulcus. Above the lateral malleolus, the fibula partially overlaps or corresponds to the lower end of the tibia, leaving a gap.

2. Lateral view of the fibula (Fig. 6-1-36). The anterior part of the fibula cephalic overlaps the tibia, and the fibular diaphysis is typically long tubular bone. The lateral malleolus descends through the ankle space into the talar trochlea. In the shadow overlapping the talar trochlea, the medial malleolus is anterior and the lateral malleolus is posterior.

I hope I can help you with your doubts.

Diagnosis of common peroneal nerve injury: history of injury, due to paralysis of the extensor muscles of the calf and the peroneal longus and brevis muscles, with foot drop and varus, and loss of sensation on the outside of the calf and dorsum of the foot. Electromyography can determine the extent and extent of the injury.

Loss of sensation in the calf can be divided into lateral and dorsum of the foot and anteromedial thigh and medial calf, so attention should be paid to differentiation. In femoral nerve injury, high injury manifests as loss of sensation in the anteromedial thigh and medial calf. Low-level injury, which can be a simple saphenous nerve injury, presents with medial calf sensory deficits.

The femoral nerve originates from the lumbar plexus, descends along the surface of the iliac muscle, penetrates the inguinal ligament, and divides into anterior and posterior strands 3 to 4 cm lateral to the femoral artery, innervating the sartorius muscle, quadriceps muscle, and the cutaneous branch to the anterior femoral part and the saphenous nerve innervates the medial aspect of the calf**. Femoral nerve injury is rare, and most of them are surgical injuries, and the main clinical manifestations after injury are knee straightening disorders caused by quadriceps paralysis and sensory deficits in the anterior femoral and medial calves. If the injury is surgery, it should be repaired as soon as possible.

If you have peroneal nerve damage, you may see the following symptoms;

First, sensory dysfunction, such as on the outside of the calf and the dorsum of the foot, there is a significant decrease in sensory function, or there are some abnormal sensations, such as the feeling of ants crawling, or the feeling of pins and needles.

Second, there may be a decrease in motor function, such as the loss of motor function of the anterolateral calf muscles and the intrinsic muscles of the foot, a more typical symptom is the occurrence of toe dropping, and the patient often needs to elevate one side of the lower limb excessively when walking, as if crossing a threshold.

Third, this kind of disease has been onset for a long time, it may be accompanied by atrophy of the calf muscles, if there is peroneal nerve damage, after the condition is clear, it is necessary to take surgical incision and exploration repair as soon as possible to carry out **, and if it is some relatively minor damage, you can temporarily take a conservative ** way.

The peroneal nerve generally refers to the common peroneal nerve, and the main manifestation of injury is numbness on the outside of the calf and the instep of the foot**. The main symptoms caused by sensory nerve damage are numbness in the feet and calves. In addition, the main problem after peroneal nerve injury is the manifestation of foot drop in the lower leg, that is, after lifting the thigh, the foot hangs down, allowing the patient to lift and lift the foot, but it cannot be lifted, because the common peroneal nerve injury affects the strength of the long, brevis and extensor muscles of the fibula, resulting in loss of exercise ability and foot drop.

The patient must walk with his legs raised high, otherwise his feet will touch the ground and he will easily fall. This gait is also called a threshold gait and a high leg gait. Typical symptoms of common peroneal nerve injury are numbness in the lower legs, inability to lift, lift, and lift the instep of the foot, and inability to lift the toes.

The inability to step on the ground with the heel and the inability to lift the forefoot during the examination are typical clinical manifestations of common peroneal nerve injury.

The clinical manifestations of peroneal nerve injury are mainly extensor paralysis of the anterolateral calf, dorsiflexion of the foot, valgus dysfunction, varus ptosis deformity, loss of thumb extension and toe extended, flexion state, and sensory deficits in the anterolateral aspect of the calf and anterior and medial dorsum of the foot.

Common peroneal nerve injury is often caused by trauma and is characterized by foot drop and a straddle gait when walking; The ankle joint cannot be dorsally extended and valgus, and the toes cannot be dorsally extended; decreased or absent sensation on the lateral calf and dorsum of the foot**; Muscle atrophy of the anterior tibia and lateral calf.

Common peroneal nerve injury**.

Primary**: Trauma.

Causes. The common peroneal nerve is a branch of the sciatic nerve, and because the common peroneal nerve is located in the neck of the fibula, the position is superficial, and on the surface of the bone, there is little surrounding soft tissue, and the mobility is poor, and it is easy to be damaged there. Such as splints, plaster crushing injuries and surgical injuries; Knee ligament injury with common peroneal nerve injury is not uncommon; Critically ill patients are bedridden for a long time, and the lower limbs can also be crushed in external rotation.