Knee block

An example of therapy is knee blockade.

In medical practice, the term blockade of the knee joint refers to two completely different concepts. First of all, it is the jamming of the knee joint, when, for various reasons, the ability to exercise the extension movements disappears. The second concept of blockade means a shot in the knee joint., which is done to achieve certain therapeutic goals.

Why is the knee blocked?

The most common blockade of the knee joint of a mechanical nature. When a relatively large intraarticular body hits between the condyles of the bones, they become pinched, and the knee loses the ability to perform standard movements.

Lead to this there may be mobile fragments of the cartilage tissue of the meniscus of the knee joint, resulting from injuries, as well as any bone or bone-cartilage fragments, intra-articular tumors and foreign bodies that fell into the knee.

The blockade of the knee joint usually occurs in a half-bent position. A joint can seize when a person tries to get up from his knees, while walking upstairs, after squatting.

Sick when given pathology feels not only discomfort, but also a sharp pain. To restore mobility to the knee, it is sometimes sufficient to carry out several passive circular or flexor-extensor movements.

When as a result trauma occurs recurrent blockade of the knee joint, it is already impossible to cope with the problem. To eliminate the block and restore mobility to the knee, the doctor will have to make an anesthetic blockade of the knee joint., after which, with the help of careful calibrated movements, the knee is returned to its normal state.

When a stable form of the disease requires surgical treatment.

There are also cases of loss of joint mobility under the influence of periarticular pathologies. Such a blockage of the knee can be triggered by ruptures or inflammations of tendons or muscle tissue, complex damage to the periarticular structures, and diffuse pathologies.

Thus, the blockade in arthrosis occurs at advanced stages of the pathology and is associated with the complete destruction of cartilage tissues, which leads to joint jamming.

The loss of motor abilities in inflammatory diseases is more due to pain. Therefore, the blockade of arthritis is actually false and is completely eliminated after the removal of inflammatory reactions.

Knee block

Intra-articular block of the knee joint

Injections for the blockade in the knee are prescribed for painful, intense pain, when simple tablets or pain-type injections can no longer cope with them.

This is how the knee injection goes.

The benefits of these pricks due to the fact that the active substance goes directly to the source of pathology. Therefore, the results in the form of a relief condition are observed almost instantly. With properly selected drugs for osteoarthritis blockade, pain syndrome eventually disappears completely.

Such treatment in most cases is used as a method of conservative therapy. But intraarticular injections are not able to cope with the cause of the pathology. They are aimed at reducing the intensity of pain. The benefits of blockade with arthritis injections include rapid pain relief, which contributes to the achievement of sustained remission.

Injections for the blockade can be used after surgery on the meniscus of the knee, as well as other surgical interventions, which allows to speed up the rehabilitation process and reduce puffiness.

In prophylactic and therapeutic Chondroprotectors or hyaluronic acid injections can be used for restorative purposes. Such treatment allows you to slow down the degeneration processes in the joint and even help in non-neglected cases to restore cartilage and bone tissue.

Unfortunately, drug blockade is not suitable for all patients. And in some cases, such therapy may even harm.

  • with advanced forms of arthrosis, when the irreversible process of destruction has destroyed more than half of the cartilage tissue in the joint;
  • in some types of arthritis, if, as a result of the inflammatory process, the destruction of bone and cartilage tissues began;
  • if treatment with intra-articular injections does not bring the desired results;
  • with diabetes mellitus – dosages are adjusted individually.

Knee block

  • during exacerbations in the initial stages of arthrosis;
  • for non-infectious types of arthritis (rheumatoid, psoriatic, reactive, and others);
  • with reactive synovitis;
  • after injuries and surgeries;
  • in the presence of periarthritis;
  • during bursitis.

But it should be borne in mind that in order to achieve a stable result with the help of intra-articular blocks, it is necessary to strictly observe the recommendations of physicians in the number and dosage of procedures.

How to make a blockade of the knee joint?

Intra-articular injection is a complex and sometimes dangerous procedure that requires specific knowledge and skills. Therefore, any blockade is carried out only in the conditions of medical institutions by certified specialists.

Amateurish approach to such treatment can significantly harm the patient. Therefore, it is not necessary to prescribe yourself intra-articular injections and, moreover, to resort to the services of amateur doctors.

  1. In most cases resort to a simpler and safer method, which involves the introduction of necessary medications from the outside of the joint. During the procedure, the patient takes a horizontal position. Under the damaged knee the roller is enclosed. The doctor chooses a place from the lateral side of the patella. The needle is inserted between the middle third and top edge and advances along the back surface. For one injection use 5-15 ml of the drug. If necessary, the doctor may increase the dosage.
  2. In severe cases applied bilateral blockade. This method is more complex, but is able to more quickly deal with significant pain.

In this way, postoperative blockage is performed with an injection into the knee joint in case of meniscus damage and other injuries. Bilateral blockade is also advisable to carry out after the puncture of the joint.

Video – knee blockade

Blockade remedy

The choice of the necessary drug for the procedure is carried out individually, taking into account the general condition and the results of diagnosis. If necessary, during treatment, the doctor may change the drug and continue therapy with other medicines or even stop the blockade.

Each medication used for blockades has its own contraindications. Therefore, it is desirable to pre-conduct a complete examination of the patient.


These medicines are used when necessary, point effects. Even single injections significantly reduce pain. Apply anesthetics in case of damage to parts of the joint, with arthrosis. Most often carry out blockade Novocain, Trimecain, Lidocaine . However, these medications can cause allergic reactions that must be considered when prescribing drugs.


The main goal of blockades with chondroprotectors is to stimulate the regenerative processes in the joint. However, the anesthetic function is also characteristic of such medications, although it belongs to secondary properties. They can be appointed, both in the acute period of the disease, and in the period of remission.

Intra-articular administration of chondroprotectors can reduce pain during an exacerbation of the disease. Unlike tablets, as well as medicines for intramuscular injections, chondroprotectors, administered directly into the knee, do not require a long course of use.

Hyaluronic acid

Injections of hyaluronic acid drugs are not able to cope with pain. But these medicines quite effectively cope with the lack of synovial fluid. Due to the introduction of giularonic acid into the cavity of the damaged joint, regenerative processes are activated. A significant disadvantage of this therapy is the cost of medication.

Hormonal drugs

The introduction of corticosteroids into the joint is considered the most effective way to anesthetize the knee. Hormones also cope with inflammatory reactions and act as immunomodulators.

Knee blockade is most often performed Diprospanom, Hydrocortisone, Kenalog . Such drugs have a prolonged effect, so do not require frequent administration.

However, due to the frequency and severity of side effects, such drugs are resorted to only as a last resort and only under the control of physicians.

Prices for knee blockade depend on the status of the clinic and the complexity of the procedure. The real price may vary as of the beginning of 2016 from 940 to 2900 Russian rubles.

In addition to the cost of the procedure, it is also necessary to take into account the prices of injected drugs, which do not have a small effect on the total cost of therapy.

If the blockade applies Diprospan , you have to spend 340–440 rubles to purchase one ampoule of the drug. Analogs in the form of Phlesterone can be purchased at an order of magnitude cheaper (160–230 rubles), but they are significantly inferior in therapeutic effect.

Blockade of the knee: consequences

This is what an electro-optical converter looks like.

As practice shows, after osteoarthritis blockades, negative consequences arise in the absence of the necessary precautions during injection, as well as the experience of medical personnel.

To needle with 100% Probably got into the joint cavity, it is necessary to apply an image intensifier. However, in practice, this method of control is used quite rarely.

When cutting off the knee with the use of ultrasound, the efficiency drops to 80%. If the surgeon performs manipulations without additional methods of observation, the desired result is achieved only in 50% of cases.

Action blockade may last up to several days. In order to prevent undesirable consequences, the foot must be rest for this period, avoiding overloads.

The effectiveness of drug blockade has become so popular that doctors prescribe this procedure and patients who do not require such treatment.

Reasoning , that such pathology treatment helps to avoid long-term drug therapy is erroneous. After all, intra-articular injections are unable to cope with the source of pathology, and only for the time being they eliminate pain. If this technique was so effective in treating joint pathologies, then all patients have long received their portion of intra-articular injections and forgot about their ailments.

  1. Microtrauma of the joint. Therefore, frequent blockades should be avoided.
  2. The probability of infection in the joint cavity.
  3. Impaired function of the paraarticular ligaments and muscles, which leads to instability of the knee.

Knee block

  • obesity;
  • diabetes;
  • ulcer and other gastrointestinal disorders;
  • renal failure;
  • mental instability.

In the appointment of blockades for the treatment of a joint, it is necessary to take into account the side effects of each specific drug injected, as well as the patient’s personal intolerance to certain medications.

Therefore, if the doctor does not see another method of therapy, but insists only on blockades without the use of conservative medical methods of treatment, physiotherapy, medical nutrition and gymnastics, think about changing the doctor.

Without complex therapy, it is impossible to cure more than one ailment of the knee joint, and this method of treatment is rationally used only for temporary relief of the condition.

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