Sciatica is a common condition that appears after the age of 50. It usually causes sharp pain that can sometimes be debilitating. It is important Treat it correctly and early to avoid more complicated injuries and the transformation into chronic pain.
What is sciatica and what are its causes?
Sciatica is caused by a pressure or injury to the sciatic nerve, This pain extends from the lower back down the leg. It typically manifests as pain, weakness, or tingling that radiates along the leg.
Sciatica often signals the presence of a more serious underlying condition. One of the The most common cause of sciatica is a herniated disc., This occurs when a displaced disc is pressing on the sciatic nerve. It can also happen if there is a tumor in the area.
It can also be caused by an injury to the pelvis or spinal stenosis, that is, the narrowing of the spinal canal, which can put pressure on the nerves.
In some cases, Sciatica can cause what is known as piriformis syndrome, This occurs when the piriformis muscle presses on the sciatic nerve, causing pain and numbness in the buttocks and legs.
Types of sciatica
Depending on where they are produced, they differ Different types of sciatica can have different symptoms..
Sciatica originating from the L4 nerve root occurs at the L3-L4 lumbar level and typically causes pain in the inner part of the foot and leg. In the case of sciatica originating from the L5 nerve root, the injury occurs in the L4-L5 lumbar region and causes pain in the top of the foot and in the webbing between the first and second toes, a condition known as "dropped toe."“
Finally, there is S1 nerve root sciatica, which is related to a problem at the S1 lumbar level, and is the cause of pain in the inner and outer part of the foot.
Symptoms of sciatica
Regarding the symptoms to identify sciatica, the most characteristic are the intense pain and tingling in the legs. In addition, the pain is usually unilateral, meaning it only affects one leg.
Sciatica can often cause numbness, stiffness, and weakness in the joints. It's normal for the pain to be more intense when the person is sitting or about to stand up.
How long does sciatica last and how long does it take to heal?
The duration of sciatica depends on both its underlying cause and how quickly treatment begins. In milder cases, the pain can improve significantly within 2 to 6 weeks, especially when it is due to nerve irritation without major structural damage.
When sciatica is associated with a herniated disc, lumbar stenosis, or other degenerative conditions, recovery is slower and can take several months. In these cases, it's common for the pain to lessen before the underlying cause disappears completely, and discontinuing treatment prematurely is often a mistake that increases the risk of relapse.
If the pain persists for more than three months or recurs frequently, it may be considered chronic sciatica and requires a more detailed medical review to adjust treatment and prevent neurological damage.
How is sciatica diagnosed?
To diagnose sciatica, the doctor usually first performs a physical exam, during which they try several exercises with the patient. Among them, the leg raise or Lasègue test, and the so-called slump test, in which the patient, seated on the examination table, extends his leg, checking if acute pain appears.
Once it has been determined whether the nerve is affected, imaging tests such as X-ray, magnetic resonance imaging, Computed tomography (CT) scan or electromyography (EMG) will provide more precise information about the injury and its exact location. They will also measure the electrical impulses produced by the nerves, as well as the responses of the muscles.
Treatments for sciatica
Regarding the treatment of sciatica, the first step is usually to supply of anti-inflammatory drugs or muscle relaxants, that alleviate or eliminate the patient's intense pain.
Normally, before starting any treatment, the patient should allow some rest time, as the acute pain decreases. Usually, Sciatica is usually treated with physiotherapy, although it is often accompanied by acupuncture or chiropractic treatments.
In other cases, they resort to steroid injections, which can help reduce inflammation in the area surrounding the affected nerve, which alleviates the pain. Sometimes, if the patient has not experienced improvement with other treatments or has lost bowel or bladder control, a procedure is performed surgery to remove the element that is compressing the nerve.
What exercises are recommended and which should be avoided with sciatica?
When performed in a controlled manner, exercise can be a key tool in sciatica recovery. In subacute and recovery phases, gentle lumbar mobility exercises, progressive stretching, and strengthening exercises for the abdominal and lumbar muscles are recommended.
During the acute pain phase, on the other hand, any high-impact exercise, sudden movements, and excessive loads that increase pain radiation should be avoided. Forcing the area when the nerve is inflamed worsens the compression and delays recovery.
Personalizing the exercise according to the cause of the sciatica and the patient's symptoms, always under professional supervision, is key to an effective recovery.
Sleeping and sitting positions when you have sciatica
Adopting a correct posture is essential to reduce pressure on the sciatic nerve. When sleeping, you should sleep on your side with a pillow between your knees or with a pillow under your legs, and on your back, to keep your spine in a neutral position.
It's important to properly support your lower back when sitting, keeping your feet flat on the floor and avoiding staying in the same position for long periods. Prolonged sitting, especially on soft surfaces or without lumbar support, worsens symptoms. Changing your posture frequently and paying attention to ergonomics both at work and in the car can make a significant difference in the progression of the pain.
When is sciatica severe and requires urgent medical attention?
Most cases of sciatica improve with conservative treatment, but there are situations in which it is essential to see a specialist immediately.
The appearance of progressive loss of strength in the leg or foot, difficulty walking, or feeling unsteady are warning signs.
Urgent attention is also required if there is loss of bladder or bowel control, numbness in the genital area, or severe pain that does not improve with medication or rest. These symptoms may indicate severe nerve compression that likely requires surgical treatment.
Sciatica prevention
Sciatica can be prevented to some extent, or at least certain guidelines can be followed to care for the area and thus avoid its onset. Some of these recommendations are as follows:
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- Postural control, to avoid forced positions for the spine, which could lead to more serious injuries.
- Body weight control, since being overweight could increase pressure on the intervertebral discs.
- Exercise moderately, avoiding impact sports.
- Do not lift heavy weights, which can put an overload on the spine.
- Perform stretches after playing sports.
- Strengthen the lumbar and abdominal muscles, which will help prevent injuries.
- The importance of rest and the type of mattress.
As has been observed, sciatica is a very common condition among the population that, many times, can be giving clues about the existence of more complicated pathologies. To some extent, it can be avoided by maintaining good posture, keeping a control over body weight, and avoiding a sedentary lifestyle.
