Inflammation of the synovium

Introduction Synovitis is a joint lesion in which the synovial membrane is stimulated to produce inflammation, causing the secretion to become dysregulated. The knee joint is the joint with the most synovial membrane in the whole body joint, so the synovitis is more common in the knee. The synovial cells secrete fluid, which can lubricate and nourish the joints. The heat generated by the knee joint during the movement of the body depends on the synovial fluid and its blood circulation. When the joint is affected by extrinsic and intrinsic factors, the synovial membrane reacts, causing congestion or edema, and exuding fluid, which is characterized by joint swelling, pain, and functional impairment. It can also be said that there is fluid in the joint cavity and there is inflammation of the synovium. Medical research confirmed: knee joint synovitis, ankle synovitis, hip synovitis, bursitis, traumatic arthritis, traumatic synovitis, osteoarthritis, lumbar disc herniation, bone hyperplasia, Rheumatoid arthritis, waist and leg pain and other diseases. The cause of the pain is caused by inflammation of the synovium, so it comes down to the treatment of synovitis.

Cause

When the knee joint is directly hit by violence, long-term weight-bearing chronic strain, indirect knee sprain, injury during surgery, intense physical activity or super-strength training, incorrect habitual movement, joint degeneration, knee reversal, and even wear Improper shoes can cause damage to the wound synovial membrane, synovial congestion, swelling, and synovial cells actively produce large amounts of fluid, including plasma, white blood cells, phagocytic cells, and the like. Normal joint synovial fluid is an alkaline liquid. As the exudation increases after injury, the acidic products in the joint accumulate, and the synovial fluid becomes acidic, which promotes the precipitation of cellulose. If the effusion is not removed in time, the synovial membrane of the joint is stimulated by long-term inflammation. The synovial membrane is gradually thickened, and the fibers are mechanized, causing adhesions and affecting normal joint activities. The liquid extracted by the joint puncture is mostly yellow, clear, or pink with blood, and the culture of the bacteria is negative. X-ray examination of synovitis bone no abnormalities, or degenerative changes, or there are intra-articular free bodies, bone spurs at the edge of bone joints.

an examination

Related inspection

Synovial fluid routine examination

1. X-ray examination: swelling of the hip joint capsule, widening joint space, no bone destruction.

2. The incidence is urgent, the course of disease is short, and there are no obvious symptoms.

3. Hip pain, lameness or knee pain. At this time, Luoyang Yuanyang Synovitis Tablet can be used in time.

4. Hip joint activity is limited, local tenderness.

5. Laboratory tests: white blood cells and erythrocyte sedimentation rate are basically normal.

Differential diagnosis

Knee joint trauma synovitis, easily misdiagnosed as "benign joint pain", given simple symptomatic treatment, poor results and often left behind sequelae. Because the degree of synovial lesions and synovial fluid exudation changes positively with the increase of intra-articular pressure and oxygen partial pressure, the oxygen partial pressure in the joint cavity is increased, the intra-articular pressure is reduced, and inflammation absorption and synovial repair are promoted. effect. Most knee synovitis is complicated by various knee injuries and the like, but it can also be caused by knee osteoarthritis alone or secondary to the elderly. In young adults, there is a history of acute knee trauma. After the injury, mild edema, pain, limited mobility, and lameness begin to occur in the knee joint. Synovial reactive effusion usually occurs 6-8 hours after injury, and the knee joint is obviously swollen and feverish, and does not dare to move. Examination revealed that knee flexion and extension activities were limited, squat difficulty and pain, and there were localized pressure points around the joints, and the floating sputum test was positive. Chronic injury synovium, there may be no obvious history of trauma, mainly characterized by soft knee joints and limited mobility, swelling continues to linger, do not dare to squat. When the activity increases, it increases, and the rest is relieved. For a long time, you can get a feeling of hypertrophy of the knee capsule. For patients with multiple knee effusions or recurrent effusions, joint effusion examination can be performed, which can reflect the nature and severity of synovitis. Therefore, joint puncture and synovial fluid examination have important reference value for the diagnosis and differential diagnosis of knee joint synovitis.

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