Young people like to be active and often participate in strenuous sports, which can easily lead to various joint sprains or intra-articular injuries, followed by joint effusion or blood accumulation, resulting in synovitis of the knee joint.
Here is a guide to what is synovitis?
Synovitis of the knee is a non-infectious inflammatory disease caused by acute trauma or chronic strain to the knee joint, resulting in the accumulation of blood or fluid in the knee joint cavity. It can be divided into acute traumatic synovitis and chronic injury synovitis. Acute traumatic synovitis occurs in young people who love sports; chronic injury synovitis occurs in middle-aged and elderly people, obese people or people who overuse the knee joint for weight bearing.
How can it be caused?
Synovitis in young people
In young people, knee synovitis is mainly caused by knee sprains and a variety of intra-articular injuries, such as meniscal injury, synovial injury, cruciate or collateral ligament injury, and intra-articular fluid or sometimes blood accumulation, manifested as acute traumatic knee synovitis. Intra-articular injuries and dislocations can sometimes be caused by simple synovial injury to the knee, such as mild trauma, or long-term chronic knee strain.
In addition, wind, cold and dampness can cause chronic knee synovitis if the knee joint gradually becomes swollen and dysfunctional. Another cause is infection, of which synovial tuberculosis is common. Generally speaking, the synovial membrane is rich in blood vessels, has good blood circulation and is resistant to bacteria, but in the case of infection with tuberculosis bacteria, the disease progresses more slowly and its symptoms are sometimes good and sometimes bad, this is one of the chronic synovitis of the knee.
Synovitis in the elderly
Synovitis of the knee, in the elderly mostly secondary to osteoarthritis of the knee, is mainly due to mechanical biochemical irritation from cartilage degeneration and bone proliferation, secondary to synovial edema, exudation and effusion of the knee joint.
Over-exercise
The swollen joint type is predominantly swollen after excessive exercise, with pain of varying severity. In the non-swollen type, joint pain predominates and is often accompanied by mild swelling. Studies have confirmed that both types are essentially the same, but differ only in the degree of synovial pathological changes. Researchers have found that after prolonged single-motion overload of the knee joint, the synovial tissue becomes congested and edematous, and the exudation of red and white blood cells and fibrin is positively correlated with the increase in intra-articular pressure and the decrease in oxygen partial pressure. Inflammation formation, thus, it is believed that the occurrence of traumatic synovitis after excessive exercise is not only related to the repetitive_strike of the joint surface and the injury of the joint capsule, but also plays an important role in the development and regression of the disease process.
How to avoid it in life?
(1) Avoid excessive activity and strain on the knee joint, especially for those who exercise vigorously on both lower limbs (e.g. dancers, athletes, porters, etc.), and pay more attention to the combination of work and rest to prevent tissue damage caused by excessive force, otherwise, osteophytes are likely to occur with age.
(2) When a fracture occurs in the knee joint, it is important to go to the hospital in a timely manner so that the fracture end can achieve anatomic repositioning as much as possible. If the repositioning is unsatisfactory, surgery should be performed promptly.
(3) For those who are overly obese, it is important to control the diet, adjust the diet structure, reduce the caloric intake, and keep the weight within the appropriate range to reduce the pressure and wear on the joint.
(4) The elderly can take appropriate supplements of calcium, vitamin D and other drugs closely related to bone metabolism joints, and also engage in moderate physical exercise to slow down the aging and degenerative change process of bone tissue.
Daily diet to pay attention to?
1, to eat less milk, goat milk and other milk and peanuts, chocolate, millet, cheese, milk sugar and other foods containing tyrosine, phenylalanine and tryptophan, because they can produce arthritis mediators prostaglandins, leukotrienes, tyrosine kinase autoantibodies and anti-milk IgE antibodies, etc., easy to cause allergies and cause arthritis aggravation, recurrence or deterioration.
2, eat less fat, high animal fat and high cholesterol food, because the ketone body, acid, arachidonic acid metabolites and inflammatory mediators, etc., can inhibit T lymphocyte function, easy to cause and aggravate joint pain, swelling, bone decalcification osteoporosis and joint destruction.
3, eat less sweets, because its sugar prone to allergies, can aggravate the development of synovitis, easy to cause joint swelling and pain aggravation.
4, less alcohol and coffee, tea and other beverages, pay attention to avoid passive smoking, because they can aggravate the deterioration of arthritis.
5, can eat more animal blood, eggs, fish, shrimp, bean products, potatoes, beef, chicken and beef “tendon” meat and other foods rich in histidine, arginine, nucleic acid and collagen.