Knee endoprosthesis. Price, types, x-rays, service life, where to buy, photos, reviews. Zimmer, Stryker, Biomet

Endoprosthesis as an artificial knee joint put in place of damaged tissue. The operation is indicated for the progression of degenerative-inflammatory processes, when drug therapy does not help to cope with them. An artificial knee joint is selected according to certain characteristics, price, also taking into account the patient's condition.

Indications

In case of serious damage to the joint in the knee area, the patient is indicated for surgery.

The operation to install the endoprosthesis is carried out taking into account the following indications:

Name	Description
Diseases and disorders within the body	chronic inflammation of the joint of an autoimmune nature; gout; osteoarthritis, against the background of which there are serious degenerative changes in the tissues of the joint; deforming and ankylosing arthrosis; ankylosing spondylitis; insta story viewer prolonged inflammation that has affected the tissues and mucous membrane of the synovial bag; intra-articular or periarticular infection; last degree obesity; injuries, damage to the knee joint; hormonal imbalance.
Pathological changes inside the joint	congenital or acquired dysplasia; gonarthrosis in advanced stages; systemic arthritic disease; local tumor neoplasms; improperly fused fractures; avascular necrosis of joint tissues; degenerative pathological processes after injuries, injuries.

Knee endoprosthesis is also installed if the patient has vivid painful symptoms, motor functions are seriously impaired. In this condition, conservative treatment does not bring relief. The same goes for minimally invasive surgery.

Contraindications

Knee arthroplasty is not allowed for all people. There are certain contraindications when an artificial substitute cannot be installed. Patients are advised to undergo a complete medical examination before surgery to determine concomitant diseases and prohibitions.

Knee endoprosthesis (price depends on numerous factors, including the manufacturer, the materials used in production and the method of installation of the structure) are contraindicated in the following situations:

Name	Description
Overweight	Large body weight is a contraindication for arthroplasty. In particular, this applies to people with obesity of the 3rd degree. Before the operation, the patient is advised to get rid of extra pounds. An artificial joint cannot work under strong pressure for a long time, it will quickly break.
Oncological diseases	In some situations, malignant processes in the human body allow endoprosthetics to be performed. But in this case, the patient should undergo a thorough medical examination. There are situations when, in case of cancer, the installation of an artificial knee joint is even mandatory. In case of osteoma of the condyles, the endoprosthesis prevents the occurrence of metastases.
Dysplasia	Congenital bone defects under any conditions are a contraindication for endoprosthetics. This is because the bone itself will not be able to firmly hold the artificial element.
Thrombophlebitis	Endoprosthetics leads to a certain side effect. After the procedure, the likelihood of a blood clot in the lower limb increases. Therefore, the operation is contraindicated in patients with chronic thrombophlebitis or thromboembolism. Before installing an artificial knee joint, it is necessary to undergo treatment to restore the normal state of the blood vessels.
Persistent neurological disorders	We are talking about deviations in the functioning of the central nervous system, against which the work of muscles is disrupted (Parkinson's disease). It will be difficult for a person with such pathologies to undergo restorative rehabilitation. Revision endoprosthetics will be required. Surgery in old age will have serious consequences.
Immune problems	Before the operation, it is necessary to undergo an examination in order to exclude violations in the functioning of the immune system. If the body rejects the implant, the procedure will be useless. There is a high likelihood of serious consequences, including infection of a postoperative wound.

It is impossible to ignore contraindications before installing an artificial knee joint, since serious complications can be provoked. A successful operation and proper preparation for it guarantee the patient a return to normal life, elimination of pain and restoration of the functioning of the knee joint.

Possible complications

After surgery, patients should strictly adhere to the rules of rehabilitation. Additionally, it is recommended to attend physiotherapy procedures and perform therapeutic exercises.

If simple rules are not followed in the first month after surgical treatment, the likelihood of serious complications is high:

• a secondary infection joins;
• seams diverge, wounds open;
• sensitivity is impaired in the area of ​​the leg where the operation was performed;
• bleeding opens;
• there is an increase in local or general body temperature against the background of a local inflammatory process or as a result of secondary infection;
• in some situations, there is a stroke, myocardial infarction;
• the length of the operated lower limb changes;
• chronic pain persists;
• Scars or rough growths develop around the artificial knee joint.

Failure to comply with the rules also leads to rapid wear of the prosthesis, which provokes a weakening of its fixation.

The following pathological conditions are also complications:

Name	Description
Osteolysis	The disease is characterized by the destruction of bone tissue around the installed prosthesis. Pathological processes develop as a result of the appearance of a reaction to the contact of individual parts of the artificial joint with living tissues and bones.
Musculoskeletal contracture	A pathological condition in which passive movements are limited. The patient is unable to straighten or bend the leg in the knee area.
Thromboembolism	The disease is characterized by partial or complete blockage of blood vessels. The veins of the small pelvis or thigh are more often affected.

Knee endoprosthesis (the price of the product is different for all manufacturers, it is formed due to numerous factors) provokes complications as a result of a large body weight. The same goes for heavy knee stress and increased physical activity. The probability of endoprosthesis fracture is high. It also happens if the surgeon has installed a poor-quality design.

Views

Surgeons use the following types of structures in endoprosthetics:

Name	Peculiarities	Advantages	Flaws
Posterior anchorage prosthesis	The plastic / metal construction provides an elevated platform and pin.	Long-lasting product with soft and fluid movements.	The product fulfills its duties no more than 10-12 years.
Cruciate ligament preserving prosthesis	It is installed in patients with minor changes in the cruciate ligament.	The prosthesis helps maintain the integrity of the posterior wall of the cruciate ligament of the knee.	There is no nail, but the surgeon uses it to securely and stably fix the artificial knee joint.
Partial denture	It is used for irreversible degenerative-destructive pathological processes.	Single pole design.	All products are small in size.
Movable endoprosthesis	The structure consists of 3 elements: base, pin, connection.	Joint mobility is provided by a moving platform. The endoprosthesis restores joint mobility, even after its complete destruction.	It is not recommended for installation in patients with weak tissues and muscle fibers. Loosening quickly, so replacement is necessary.
Fixed endoprosthesis	Large construction, with metal and polyethylene elements.	With the right selection, it will last a long time.	It is not recommended to install a fixed endoprosthesis for people who lead an active lifestyle or overweight patients.

The cost of artificial joints depends on the manufacturer, the manufacturing materials used and the patient's requirements. The need for endoprosthetics is determined by the doctor on an individual basis. The specialist determines the disease, its severity and selects the most effective treatment. Recommends surgery if necessary.

Lifetime

The lifespan of a knee joint replacement depends on many factors. When choosing a design, the doctor takes into account many features to make the prosthesis last longer. Over time, a planned replacement of a worn joint is required (revision prosthetics).

In the process of re-installing the structure, the surgeon saws off the native bone of the human leg. This happens with every artificial joint replacement surgery. Therefore, it is important to select a high-quality endoprosthesis that will serve for a long time.

The service life of the product depends on the following factors:

• competent installation of the endoprosthesis;
• compliance by the patient with all the doctor's recommendations during the period after surgery;
• the quality of the endoprosthesis used;
• autoimmune, endocrine and metabolic chronic diseases;
• overweight in humans.

Knee endoprosthesis (price is one of the few parameters that pays attention to patient) will last at least 25 years with little stress on him, if it is of high quality and durable design.

After a complete medical diagnosis, the doctor will help you choose a good artificial knee joint, taking into account the results of the examination and the individual characteristics of the human body.

Rating

Doctors advise giving preference to well-known manufacturers of artificial knee joints. They use quality materials for the manufacture of structures, value their reputation and receive most of the positive feedback from users.

Zimmer

The international company has been manufacturing and improving artificial knee endoprostheses for many years. The cost of structures is determined by their quality. Price, depending on the type of prosthetics, 80-230 thous. rub.

Popular models of the manufacturer Zimmer:

Name	Description
LPS-Flex Mobile and Gender Solutions	The design allows the prosthetic knee joint to rotate and bend freely. The surface of the endoprosthesis is made of metal-plastic and is attached to the end of the femur. The cartilage is replaced by a special platform.
Patello-Femoral Joint	A mobile bearing that is installed for people with a physically active life position. Suitable for arthroplasty of a joint when it is affected by pathological processes in the early stages. The manufacturer offers designs separately for male or female.

Zimmer endoprostheses guarantee 93% restoration of joint functioning, which improves the patient's quality of life.

Stryker

The manufacturer offers unique knee joint endoprostheses. The products are equipped with a fixed platform in 9 sizes, so it will be easy to choose the option you need.

Biomet

Knee endoprosthesis (the price depends on the quality of the product) of American production, which fully adjusts to the human knee, taking into account its anatomical features.

The most popular are the following models:

Name	Description
Complete Knee System	The design is precisely tailored to the knee. The manufacturer offers several options for implants that differ in size.
BioMet Oxford Knee	It is installed in patients with medial arthritis. The prosthesis includes plastic bearings and is installed on one side of the joint. Thanks to this design, degenerative-inflammatory processes in the area of ​​bone and cartilage tissue are reduced.

The American company Biomet produces prostheses for the lower extremities, which in 98% of cases take root normally. Their average service life is at least 20 years.

Aesculap

A German manufacturer that produces a large number of endoprostheses:

Name	Description
Columbus Total Knee System	The design is used for total knee arthroplasty. The models differ in the type of fixation, platforms and legs.
AS Advanced Surface	Model with a unique multi-layer coating. Ceramics and zirconium nitride are used in the manufacture of the prosthesis. Thanks to these materials, a durable product is obtained that increases wear resistance by 65%.

The only downside to the company is that they don't manufacture gender-specific implants.

Depuy

The products of this company are as similar as possible to the anatomical structure of the articulation of the human knee. The constructions restore physical activity and reduce painful sensations.

The manufacturer offers the following models:

Name	Description
LPS	The endoprosthesis is installed in case of severe damage to bone tissue after infection, trauma, tumor or other diseases. The implant can completely replace the femur or tibia.
ATTUNE Knee	By reducing the radius between the elements of the thigh, the endoprosthesis maintains the mobility of the lower limb. The design has a depression, thanks to which the product perfectly adapts to the anatomical features of the musculoskeletal system.

The service life of each endoprosthesis from Depuy is at least 15 years. Then everything depends on the patient, who is advised to follow simple rules.

Endoprosthetics is a radical method of treating the knee joint. Special designs help to reduce pain, restore joint mobility, and prevent disability.

There are many reviews of patients who agreed to the installation of an endoprosthesis, who did not regret their decision. After a complete medical diagnosis, a doctor will help you to choose an artificial prosthesis for the price and quality.

Article design: Vladimir the Great

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