Traumatic synovitis of the knee

Brief introduction of knee traumatic synovitis The knee joint is the joint with the largest synovial area in the whole body joint, and the synovial reaction is also the most obvious. Knee traumatic synovitis refers to the non-infectious inflammatory response of the synovial membrane caused by the synovial membrane of the knee capsule fibers after trauma. Clinically, it is divided into acute traumatic inflammation and chronic strained inflammation. If the diagnosis is confirmed, it should be actively treated to prevent knee joint dysfunction. basic knowledge Sickness ratio: 0.0001% Susceptible people: no specific population Mode of infection: non-infectious Complications: Arthritis

Causes of traumatic synovitis of the knee

Mechanical damage (55%):

External factors are mainly caused by mechanical damage such as acute injury or chronic strain (including surgical injury). It is an important pathogenic factor of traumatic synovitis. Acute traumatic synovitis is mainly caused by bleeding after injury. The disease. Chronic synovitis is generally caused by the failure of acute traumatic synovitis, or by other chronic strains, causing inflammation of the synovial membrane to ooze out of joint effusion. Clinically, it belongs to the scope of syndromes of traditional Chinese medicine. In general, there are many people who are damp, or people who are obese, and the blood is injected into the joints.

Disease factor (30%):

Knee synovitis, in the elderly more secondary to knee osteoarthritis, mainly due to mechanical biochemical stimulation of cartilage degeneration and bone hyperplasia, secondary knee synovial edema, exudation and accumulation Liquid, etc.

Knee joint traumatic synovitis prevention

(1) to avoid excessive knee joint activity and strain, especially those with severe lower limbs, it is necessary to pay attention to work and rest, to prevent tissue damage caused by excessive force.

(2) When there is a fracture in the knee joint, it is necessary to go to the hospital for treatment in time, so as to make the fracture end reach the requirement of anatomical reduction. If the reset is not satisfactory, surgical treatment should be taken in time.

(3) The elderly can appropriately supplement calcium, vitamin D and other drugs that are closely related to bone metabolism, and engage in moderate physical exercise to slow down the aging and degenerative changes of bone tissue.

Complications of traumatic synovitis of the knee Complications

Knee synovitis not only affects joint function, but also can cause progressive organic damage to the joint. In severe cases, synovial adhesion occurs. The joint function is lost. In severe cases, not only the knee joint activity is limited, but also the quadriceps of the quadriceps appear to have different degrees of atrophy, and more often have different degrees of arthritis.

Knee joint traumatic synovitis symptoms Common symptoms Blood stasis can not bend knee injury Adolescent knee pain knee and calf wide... Infectious fever knee sprain knee joint swelling blood stasis joint fluid increase

The disease is divided into two clinical situations, namely traumatic inflammation and chronic strain inflammation.

(1) If it is an acute injury, it is characterized by a knee hematoma. The joint hematoma usually occurs within 1 to 2 hours immediately after or after the injury. There are extensive blood spots in the knee and calf. The skin or swelling at the time of palpation There is tension, positive floating test, often systemic symptoms, such as fever caused by blood stasis, local hot, this disease is often a complication of other injuries, clinical examination should be carefully checked to prevent missed diagnosis.

(2) Chronic strain or injured knee synovitis, which is caused by improper treatment of acute synovitis, which is more common in the elderly, more physique, or accompanied by knee varus, knee valgus or other Patients with knee deformity, or those with knee joint hyperplasia, etc., complained of heavy discomfort in both legs, difficulty in knee extension and flexion, but no significant obstacles in passive exercise, pain is not severe, local redness is not hot, Knee joint function tests generally have no obvious positive signs. The common phenomenon is: bulging at the knees on both sides of the patellar ligament, full, palpation by hand, which is soft, even with sac sexy, joint fluid such as more than 10 ml The relief test was positive.

Examination of traumatic synovitis of the knee

There are two main types of examination for this disease:

(1) Physical examination: examination can be seen in the knees on both sides of the patellar ligament, bulging, full, palpation by hand, the area is soft, even the capsule is sexy, if the joint effusion exceeds 10 ml, the relief test is positive, knee joint Functional examinations generally have no significant positive signs.

(2) X-ray examination: the sacral line examination shows swelling of the joint capsule and swelling of the synovial membrane, and sometimes bone destruction can be seen.

Diagnosis and differentiation of traumatic synovitis of knee joint

After the knee joint is injured, the joints are swollen, painful, floating, and limited activity. It should be differentiated from joint blood. The main reason is that blood is formed immediately after the injury, and synovitis gradually appears several hours after the injury. Hemorrhagic pain is obvious, and synovitis is light, blood is often accompanied by systemic reaction, body temperature is elevated, and synovitis has no such reaction. If necessary, it can be diagnosed by joint puncture. Synovitis is a kind of syndrome. Common symptoms such as meniscus injury, intra-articular free body, cartilage softening, live membrane tuberculosis, rheumatoid arthritis, etc. can be caused.

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