What is femoral head necrosis and what causes femoral head necrosis ?

Femoral head necrosis is a type of osteonecrosis. Osteonecrosis is the damage to the bone trophic blood vessels caused by a variety of reasons, which further leads to ischemia, degeneration, and necrosis of the bone.

Femoral head necrosis is a disorder of blood circulation in the femoral head caused by various reasons, resulting in ischemia, degeneration, and necrosis of bone cells. Femoral head necrosis is characterized by slow course of disease, complex pathogenic mechanism, low rate and extremely high disability rate, so it should be diagnosed early, timely and effective, actively control the development of the femoral head, and prevent and avoid the collapse of the femoral head.

Hello. Necrosis of the femoral head is a common joint disease. Most of them are caused by rheumatism, burns, diving diseases, etc.

First it destroys the blood near the joint** and then causes necrosis. It goes from intermittent pain to persistent pain later. Later on, it was the result that activities were restricted.

If you have this condition, do not take some complementary medications. Need to go to the hospital early to receive it**. Be active and active.

**Necrosis of the femoral head, the patient's condition needs to be known. Don't be blind, and don't take some painkillers, there will be ***. Different conditions, different **. It is recommended to go to a regular hospital as early as possible**. Early diagnosis, early **.

If you want to know more about femoral head necrosis and the best program, you can contact us, expert consultation for you, at the same time, you can also mail the X-ray film to us, our hospital expert consultation to help you develop the best program, and attached light film mailed to you for free, but also send you a free copy of the "Femoral Head Necrosis Prevention and Control Manual" I hope it will help you.

Good luck soon**!

There are many causes of necrosis of the femoral head, but the pathogenesis is still not fully understood, and there are two mainstream theories:

fat embolism theory;

Intraosseous vascular damage and intraosseous hypertension.

However, disruption of the blood supply to the femoral head is recognized as the most important pathological basis for necrosis of the femoral head. The fat embolism theory believes that the initial cause of osteonecrosis is due to the fat embolus infarcting in the intraosseous blood vessels, and local thrombus formation, which further causes bone marrow necrosis, bone hypoxia, and bone cell death. The theory of intraosseous vascular damage and intraosseous hypertension suggests that osteonecrosis resembles a fascial septal syndrome, mainly caused by increased pressure outside the intraosseous blood vessels.

You can try Chinese medicine, it's still relatively good.

There are many causes of necrosis of the femoral head, which can be summarized as traumatic and non-traumatic.

Trauma includes:Femoral neck fracture, hip dislocation or acetabular fracture, long-term chronic cumulative injury of the hip joint, etc.

Non-traumatic includes:

Drug-induced necrosis of the femoral head, such as hormones**;

Alcoholic necrosis of the femoral head, caused by alcohol poisoning caused by long-term heavy drinking;

Some diseases can also be combined with necrosis of the femoral head, such as: ankylosing spondylitis, connective tissue disease, Kirchen's disease, decompression sickness, etc.;

In addition, congenital dysplasia of the hip joint, changes in intraosseous stress and extraosseous stress, can also lead to necrosis of the femoral head.

A number of factors have also been reported to be associated with necrosis of the femoral head, although the number of cases per case is small. These are called possibilities** and have not been proven.

For high-risk groups with the above triggers, once the joint feels uncomfortable, it is necessary to go to a regular hospital for further examination and diagnosis, and the doctor will make a clear diagnosis and staging, and then choose a reasonable, scientific and effective plan.

Trauma, alcohol, and hormones can all cause necrosis of the femoral head. Once the femoral head is necrotic, it still has a relatively large impact on daily life, and when the human femoral head necrosis develops to the middle and late stages, daily life will also be greatly affected. It is recommended to avoid excessive alcohol consumption as much as possible in daily life, avoid hormone drugs, and go to the hospital as soon as possible if there is a fracture in the body**.

Early detection and early ** to avoid missing the best ** period of early and mid-term drug hip protection.

Hello, the two main factors that lead to avascular necrosis of the femoral head are long-term alcohol abuse or the use of hormone drugs, coupled with long-term joint involvement, strain, and feeling the cold and dampness, the symptoms of femoral head necrosis will occur. It can also be seen in femoral neck fractures, improper intertrochanteric fractures**, long-term non-union of fractures leading to insufficient blood supply to the femoral head and necrosis; Epiphyseal necrosis during childhood development can also cause the disease.

The full name of femoral head necrosis is ischemic femoral head necrosis, which is caused by the patient's alcoholism, hormones, trauma and other factors that lead to a decrease in blood in the femoral head, resulting in ischemia of the femoral head and necrosis. In the early stage, the femoral head has not collapsed, but it is easier to be in an ischemic state, otherwise in the later stage, the patient's femoral head has collapsed and can no longer be treated with drugs, and the situation can only be alleviated by intuitive surgery.

Hip pain and dysfunction is one of the common diseases that cause hip disability in young adults.

There are three main types of necrosis of the femoral head: alcohol consumption, trauma, and hormone use. The fundamental factor of necrosis of the femoral head is the blood circulation disorder of the femoral head and its surroundings, and the lack of nutrient supply of the femoral head leads to necrosis and collapse.

Dr. Jin Guan explained: In the early stage of femoral head necrosis, the blood circulation disorder is not serious, and it can be replaced in a conservative way**, and it can only be replaced in the late stage.

There are roughly two kinds of necrosis of the femoral head: one occurs in the poor healing of the reduction of the femoral neck fracture, and the weight-bearing bone trabecular in the femoral head turns to the weight-bearing area to reduce the bearing stress, and stress injury occurs, so necrosis always occurs after the patient has healed the fracture and walked with weight. The other is bone tissue self-lesions, such as osteonecrosis caused by chronic alcoholism or glucocorticoid use, most commonly, and impaired ability of bone tissue to regenerate and repair.

In addition, it also includes the femoral head germinal center of the child's development - femoral head epiphyseal necrosis, also known as childhood femoral head necrosis, flat hip. After the necrosis of the femoral head is found, it is necessary to use hip-sparing drugs** to control the progression of the disease in time and avoid deterioration.

The so-called osteonecrosis refers to the necrosis of the living tissue components of the human skeleton. Motherland medicine calls osteonecrosis osteoerosis. Many parts of the human body can cause osteonecrosis, and there are many causes of osteonecrosis, and necrosis of the femoral head is often the most common in clinical practice.

1. Osteoporosis.

Due to the change of the internal structure of bone tissue, the trabecular bone is partially degenerated, and the blood circulation of the bone is blocked, which is easy to cause necrosis of the femoral head.

2. Trauma. Femoral neck fractures, sprains, falls, hip dislocations, and acetabular hypoplasia are prone to femoral head necrosis, and the time of its occurrence is generally believed to be 1 5 years after the fracture, and can appear as early as 2 to 3 months after the injury, and the incidence is generally 75% to 95%, and most of the osteonecrosis can occur after fracture surgery. Hip injuries (including hip dislocation, femoral neck fracture, trochanteric fracture, etc.) directly affect the local blood supply, especially the insufficient blood supply to the femoral head, resulting in necrosis of the femoral head. Hip dislocation and fracture have a necrosis rate of up to 90%.

If the fracture is dislocated for more than 24 hours, 100% of the femoral head will die.

3. Hyperlipidemia.

The composition of lipids in the blood is too high, and the lipids in the blood include cholesterol, triglycerides, and phospholipids. Due to the increase in lipid content in the blood, the viscosity of the blood itself will inevitably increase, and the flow rate will slow down, resulting in the formation of small emboli and blockage of arterioles and venules, resulting in osteonecrosis.

4. Hormone drugs.

Long-term use of large amounts of adrenal corticosteroids (such as prednisone, dexamethasone, etc.) can cause osteoporosis, arterial vascular blockage, and gradual necrosis of bone cells and bone marrow cells.

5. Congenital dysplasia of acetabulum.

Due to acetabular dysplasia and asymmetry of the cephala, the femoral stress distribution is abnormal, and the long-term effect leads to acetabular necrosis and femoral head death.

6. Chronic alcoholism.

Long-term heavy alcohol consumption can lead to many complications such as: a. lipid metabolism disorders; b. Fatty liver and hyperlipidemia; c. Focal vasculitis; d. Osteoporosis, the above pathological changes are the main culprits of osteonecrosis.

7. Osteodystrophy.

Due to long-term poor diet, the intake of calcium and phosphorus in the body is insufficient, which can not meet the metabolism, growth and development of bone tissue, etc., which can easily lead to obstruction of circulation, and necrosis of the femoral head due to insufficient blood supply.

8. Decompression sickness.

Due to the change of environmental pressure, improper decompression, that is, the decompression speed is too fast and the amplitude is too large, so that the gas (mainly inert gas nitrogen) that has been dissolved in the body before decompression is dissolved, forming bubbles and embolizing the vasculature or compressing the tissue.

9. Rheumatism. Half of them occur in cold and humid climates, which are common in China, less in South China, and gradually increase in the north, often combined with ankylosing spondylitis and rheumatoid arthritis. This is also one of the causes of necrosis of the femoral head.

There are many causes of necrosis of the femoral head, mainly in life!

Trauma, femoral head intracapsular fracture, femoral neck fracture, hip dislocation, acetabular fracture, femoral head compression fracture, these traumatic injuries mainly cause damage to the blood vessels around the femoral head, after these blood vessels are damaged, the femoral head partially loses blood nutrients, resulting in ischemia of the bone tissue in the femoral head and necrosis of the femoral head.

You can check the cause of femoral head necrosis yourself, I hope this can help you!

The accumulation of alcohol in the body due to long-term heavy alcohol consumption leads to increased blood lipids and damage to liver function.