Sural Nerve Pain – Causes, Symptoms & Treatment of Neuritis
The sural nerve provides sensation to the foot & it’s entrapment can lead to pain in the foot area. Many time it is termed as sural neuritis or sural neuralgia.
It is one of the five nerves that goes down through the center of the calf muscle. Its direction is through the back of the leg, going over the Achilles’ tendon and ending up in the little toe.
When compared to other nerves, the sural nerve is one of the minor ones, as it provides sensation for the outside of the foot, for the areas between the 4th and the 5th toes.
Why do I feel sural nerve pain?
When irritated, the nerve may be capable of creating some pain and discomfort.
Even though anyone could suffer from these problems, sometimes it has something to do with surgery in the area of the foot. Nerve pain after ankle surgery is common in many patient.
When the cause is not surgery, the problem is something athletes may suffer from. It is because the area of their foot is at all times stressed.
Also, because the nerve is located just under the skin, it is particularly susceptible to compression. Tight shoes usually put pressure on the Achilles’ tendon.
When the nerve is compressed between the tendon and the shoe, the compression can cause neuritis.
Another cause of sural neuritis is entrapment. This happens when the nerve gets pulled and trapped in the scar tissue.
This is more serious than the pressure a shoe puts on the nerve. For instance, this kind of pain is much easier to relieve.
The scar tissue involved is often the result of surgery in that region of the foot, so the sural neuritis can be a negative side effect of surgery.
There are a few surgical interventions that may cause this kind of nerve pain.
From these, the most common are:
- Ankle fracture surgery,
- Fifth metatarsal surgery,
- Flatfoot surgery,
- Achilles’ tendon related surgeries.
This list is not that long, but it is a well-known fact there is a risk of sural neuritis, when these surgeries are being performed.
This pain comes with additional symptoms. For example, you may feel numbing or tingling outside of the foot.
This won’t affect the way you are walking, but it can cause a lot of discomfort.
However, you must be careful as these symptoms may develop over time, and you may end up suffering from neuritis. Be careful when feeling this kind of pain, as many people associate it with the standard pain of being on your feet too much.
Given that this is a specific form of irritation, in a specific area that is also small, it is not that difficult to diagnose this health problem.
With that being said, a specific test for neuritis has not yet been identified. Therefore, your doctor may need to engage in a process of symptoms-elimination.
This means, the doctor will rule other causes until he or she identifies the problem. More than this, the nerve’s location makes it easier for the disease to be confused with Achilles tendon problems.
Many health practitioners are saying that neuritis can often be confused with Achiles tendinitis. On the other hand, this is more related to ankle pronation or supination and not nerve issues.
So luckily, there are physical symptoms that a medic may be able to observe and rule out in this situation.
One test to be done is known as the Tinel’s test. This calls for percussion at the site of the nerve, at the ankle. In case the percussion causes tingling, pins and electric shocks, the test is positive, which is a sign of neuritis.
Other technical measures include radiography. After you have done radiography, you have rules out the problems with the bones in the area.
Radiography may pick up the signs of arthritis or other diseases that are more dangerous and more serious. You could also get a magnetic resonance imaging test, as well.
These tests are being used to rule out the issues you may have with the soft tissues in the area.
Lastly, your doctor may think of using diagnostic nerve blocks over the area. The nerve block only does what its name says, it blocks the sensation of pain and discomfort from being sent to the brain.
When the nerve is being paralyzed, there is only the remaining pain to be assessed. In case the pain is finally relieved just by putting the sural nerve to sleep, then it is clear, you may suffer from neuritis.
In case the self-care measures or medication are not working, the treatment for sural nerve pain is surgery.
The sural nerve will respond to cold temperatures, that’s why putting ice on the affected zone would only do good.
Before taking any measure, make sure your shoes are not the ones causing the problem. In case your footwear presses on the Achilles’ tendon, it is time to replace your footwear.
You could also start using anti-inflammatory like ibuprofen. You will not only reduce the pain, but you will also reduce inflammation. These actions will relieve the stress on your sural nerve.
In case your doctor decides for steroid injections, you may want to use them. These will relieve the inflammation and also the stress on the nerve.
Finally, when no more options are left, it may be time for surgery. This will release the entrapped nerve, and other measures will no longer need to be taken.
Before we start to discuss what sural nerve entrapment is, we should recapitulate for a bit, and remember what the sural nerve is. As a matter of fact, we won’t recapitulate but add some new information about the sural nerve and how important it is in the body.
Also referred to as the short saphenous nerve, the sural nerve is located in the lower leg, close to the short saphenous vein.
This nerve is often used for biopsies and nerve grafts. The sural nerve conveys sensory information from the lower calf and outer foot.
If this nerve is damaged, the treatment may be the removal of the nerve, which can result in numbness of the ankle. However, the nearby nerves are going to grow in to compensate.
Because this nerve is just below the skin and it is not that required for essential bodily functioning, doctors often use it when a nerve biopsy is needed.
The biopsy is done with a local anesthetic that is being injected locally. As guidance, the doctor will use the saphenous vein to guide him or her, and after that remove a small part of the nerve.
After the wound has been stitched and closed, the small part of the nerve will be taken to the laboratory and put under the microscope and examined for any nerve health issues.
As said before, the sural nerve is a peripheral nerve. Therefore, it is used to communicate with the brain and the spinal cord. Sural nerve damage is, in fact, a subclass of peripheral neuropathy.Click HERE to read MORE >>