Osteonecrosis: symptoms, causes, treatment methods

Overstretched back muscles cause a lot of discomfort and pain.Osteonecrosis, which causes structural breakdown of the vertebrae and intervertebral discs, leads to severe compression of nerve endings.Often the pathology is accompanied by impaired blood circulation, which causes disruption of the nutrition of the brain and internal organs.

Osteonecrosis - what is it?

Osteonecrosis is a relapsing disease that occurs in a chronic form and is accompanied by destruction of vertebrae and intervertebral discs.Their tissues break down, causing their elasticity to decrease with a subsequent change in shape.There is a gradual decrease in the space between the vertebrae.This causes instability of the spine in areas where the pathology develops.

Pathological processes of tissue destruction occur against the background of pinched nerve endings directed from the area where the spinal cord is located.As a result, the back muscles are always tense.In such a situation, the patient complains of pain in the back and other symptoms.

Based on the characteristics of the localization of spinal structures affected by degenerative changes, cervical, thoracic and lumbar types of the pathological process are distinguished.The main sign of the development of osteoarthritis is pain, the intensity and severity of which often increases with physical activity.

There is also stiffness in movement.In addition, the clinical picture is characterized by the presence of signs of the vertebral type - headaches, changes in blood pressure, impaired visual function, hearing, etc.

Development mechanism

The development of osteonecrosis is due to the fact that the nucleus pulposus begins to lose its hydrophilic properties.This semi-fluid structure contains connective tissue fibers and chondroitin, a gelatinous substance.During the development of the human body and its growth, the processes of narrowing the blood vessels in the intervertebral discs actively occur.Nutrients are supplied diffusely, which is reflected in spontaneous concentration stabilization.This characteristic makes it difficult to completely restore cartilage that has been damaged or subjected to excessive pressure on the spine.

Pathological deviations become more pronounced due to disturbances in human hormone levels and nutrition.Cartilage tissue begins to suffer from a lack of nutrients necessary for its normal development.Therefore, the disorders manifest themselves in the form of:

• decreased strength and elasticity;
• changes in consistency parameters and configuration properties.

In the context of flattening of the intervertebral discs, radial cracks form in the annulus fibrosus.As a result, the space between the vertebrae decreases and the facet joints begin to shift.Over time, pathological changes will cover the connective tissue associated with the fibrous rings and ligaments.

When tissue breaks down, the immune system produces increased amounts of immunoglobulins.This provokes the development of aseptic inflammation and swelling is formed in the area where the facet joints are located.They also spread to nearby soft tissues.

Because the joint capsules are stretched, the intervertebral discs lose their ability to stabilize the vertebrae.Such instability in the spinal structure increases the risk of nerve root compression or blood vessel compression.This feature is characteristic, for example, of cervical osteonecrosis, which is accompanied by severe speech symptoms.

Cause of development of the disease

The condition of the intervertebral discs can worsen as the tone of the skeletal muscles in the spine decreases.Because muscles function inappropriately and asymmetrically, when the body maintains an unphysiological position for a long time, cartilage tissue destruction can occur.This violation occurs due to carrying heavy bags on the same shoulder, using soft mattresses and high pillows.

The process of destruction of intervertebral discs is accelerated due to the impact of a number of negative factors of an external and internal nature.These include:

• dysfunction of endocrine mechanisms and metabolic disorders;
• diseases of an infectious nature, including chronic diseases;
• damage to the spine in the form of compression fractures, bruises;
• Frequent and prolonged hypothermia of the body;
• diseases of the systemic and degenerative-dystrophic type - gout, psoriasis, rheumatoid arthritis, osteoporosis, osteoarthritis;
• smoking and alcohol abuse, disrupt the condition of the vascular system, impair blood circulation and cause a lack of nutrients in cartilage;
• insufficient physical development, problems with posture, flat feet - these defects increase the load on the spine, since shock absorption will not be enough;
• obesity;
• genetic predisposition;
• exposed to regular stress.

Symptom

The main clinical sign of cartilage degeneration in any location (cervical, thoracic or lumbosacral) is pain.In case of recurrence, the pain is severe and spreads to neighboring areas.Even with slight movement, it strengthens.This forces the patient to adopt a forced body position to minimize discomfort and pain:

• with cervical spondylosis, it is best to turn not only one head, but the whole body;
• When the disease is in the chest form, it is difficult for the patient to breathe deeply, therefore, to avoid acute chest pain, the patient tries to minimize the depth and frequency of breathing;
• Patients with lumbar disease have difficulty sitting down, maintaining an upright position, and moving due to spinal nerve compression.

Most often, patients complain of the presence of a dull, constant pain and a feeling of stiffness when moving in the morning after waking up.In this case, differential diagnosis will be required to help eliminate the risk of developing myositis due to spinal myositis or osteoarthritis.

Soreness and soreness occur due to compensatory tension in muscle tissue.This condition is necessary to stabilize the range of motion of the spine.Continuous mild or moderate pain may also occur when the disc is significantly stretched, due to sterile inflammatory changes.

Osteonecrosis in a specific locality is characterized by special symptoms:

1. When suffering from cervical spondylosis, people feel pain in the neck and upper limbs.There is pain in the head and numbness in the fingers.If the disease is severe, compression of the vertebral artery may occur.In this case, the patient begins to complain of a significant deterioration in health.
2. Localization in the chest is manifested by sharp and aching pain in the back;There is visceral pain syndrome in the heart, right lower quadrant and abdomen.Patients complain of numbness, paresthesias in the skin, difficulty breathing, and crunching in the vertebrae.
3. Patients with lumbar osteoarthritis complain of pain in the back and lower limbs that increases in intensity with movement.Disorders in the functioning of the genitourinary system, problems with male fertility and ovarian dysfunction are often diagnosed.During remission, pain may decrease.However, exposure to an inciting factor will lead to its recovery.

4. When mixed cartilage degeneration occurs, symptoms may appear simultaneously in several areas.This condition is characterized by a more severe course of the disease.

It should be remembered that displacement of the vertebrae and the formation of bone spurs cause compression of the vertebral artery.It nourishes the brain, providing oxygen to its cells.When pressed, nutrition is limited so patients have problems with coordination, headaches, tinnitus, and increased blood pressure.

Consequences if not treated

The cause of the complex process of osteochondral degeneration is the relatively rapid formation of herniation in the intervertebral discs.Their appearance is associated with the posterior displacement of the vertebral structures.This causes a rupture of the posterior longitudinal ligament, leading to destabilization of the disc position and its individual portions protruding into the spinal canal area.The herniation ruptures when the intervertebral disc with nucleus pulposus penetrates the spinal canal area.

When pathological abnormalities occur in the vertebral structures, the spinal cord begins to compress and the patient develops myelopathy.Symptoms of this condition involve numbness and weakness in certain muscle groups in the upper and lower limbs.Paralysis, muscle atrophy and impaired tendon reflexes appear.In some cases, problems arise when emptying the bladder and bowel.

The formation of intervertebral hernia is very dangerous because the arteries supplying nutrition to the spinal cord are compressed.The result of this pathology is the formation of ischemic zones, where nerve cells are damaged and die.Manifestations of neurological effects are expressed in disruption of motor function, reduced level of touch and nutritional disorders.

Diagnosis of disease

The initial diagnosis is made based on the patient's complaints and the symptoms present.The specialist checks the condition of the spine in different positions, asking the patient to be in a resting or active position.At the next stage, the patient is sent for laboratory diagnosis, which will help clarify the diagnosis or refute it.

Research methods used include:

1. X-ray– provides a comprehensive examination of the spine with assessment of the condition of the vertebrae, existing disorders in the form of growth, curvature.The specialist will be able to determine the intervertebral spaces and the condition of the holes.To accurately determine localized osteoarthritis in the thoracic or cervical region, a two-stage radiographic examination is performed.In the first stage, the patient lies on his side, and in the second stage - on his back.
2. CT scan method using MRI or CTprovides highly informative data, making it possible to study the vertebrae in detail without interference from the organs that cover them.The image shows the nerves and vascular system.MRI helps identify signs of many spinal diseases and locations of damage.A CT scan helps visualize hernias and identify possible deviations in the structure of the spine.
3. Laboratory testingto evaluate the condition of the blood and its main parameters.Allows you to clarify the diagnosis and determine the possibility of developing concomitant diseases.

In many cases, through the results of the examination, the doctor diagnoses the presence of certain underlying diseases that are potentially dangerous due to their complications.For example, we are talking about hernias, protrusions, radiculitis.Accurate diagnosis of problems helps treat osteoarthritis more effectively.At the same time, the disease itself in the first stages of development is disguised as symptoms of other diseases.

Treatment process

Osteonecrosis is treated conservatively or surgically.The choice depends on the severity of the condition, its neglect, the degree of tissue deterioration and the cause of its appearance.

It is important to remember that it is impossible to completely cure osteoarthritis because there is no medicine that will completely restore the discs and vertebrae.The therapeutic effect is aimed at inhibiting the destructive process and increasing the duration and stability of remission.

For symptomatic treatment, chondroprotectors are used, the basis of which is chondroitin or glucosamine sulfate.

The effectiveness of treatment using chondroprotective drugs has been clinically confirmed based on long-term trials.If you take these drugs for a long time (from 3 months), then partial restoration of cartilage and other components of the connective type - ligament-tendon apparatus, synovium - will be observed.

Accumulation of glucosamine and chondroitin in the disc area leads to analgesic, anti-edema and anti-inflammatory effects.Therefore, there is a real opportunity to optimize the dosage of NSAIDs, glucocorticosteroids, and muscle relaxants.You can count on reducing the medication burden on patients.

The effectiveness of chondroprotectors is determined by their regularity of use.Otherwise there will be no results.Ineffectiveness was also noted in the treatment of grade 3 osteochondrosis, which is accompanied by significant cartilage destruction.

The following groups of medications may be used for pain relief:

1. Nonsteroidal anti-inflammatory drugsHelps eliminate inflammatory disorders in soft tissue caused by vertebral displacement.NSAIDs are effective in reducing pain, swelling, and stiffness.
2. The drug belongs to the glucocorticosteroid group– blockade is often used together with anesthetics.They can relieve pain, restore the function of immune mechanisms and provide an anti-exudative effect.
3. Muscle relaxants.They are effective in preventing muscle spasms due to their effects on nerves.They help relax skeletal muscles and suppress polyarticular spinal type reflexes with an antispasmodic effect.
4. The external product has a warming effect.Stimulation of subcutaneous tissue receptors when activating blood flow is provided by special gels and ointments.These drugs have pain-relieving and anti-edema effects.

Vertebral symptoms, which appear due to pathological localization in the cervical or thoracic region, can be eliminated by medical means to activate blood flow.Nootropics and drugs to improve microcirculation are also prescribed.In some cases, it may be necessary to take antidepressants, as well as pharmaceuticals with anticonvulsant effects.

During the treatment of osteoarthritis, they also resort to physical therapy.UHF therapy, magnetic therapy, laser therapy, acupressure, massage, exercise therapy, hirudotherapy, as well as swimming and yoga may be prescribed.If conservative treatment is ineffective, surgery is performed by microdiscectomy, disc puncture, laser reconstruction, or implant replacement.