Knee pain is a common cause
Which one do you belong to?
Knee pain is one of the common clinical symptoms, often accompanied by knee swelling and limited flexion and extension function. There are many causes of knee pain, and patients will show more obvious symptoms of knee pain, usually due to lesions or inflammatory changes in the knee joint and its surrounding muscles, bones and muscles.
Understand the composition of the knee joint
The knee joint is made up of structures such as the femoral condyle, tibial plateau, articular cartilage, meniscus and its surrounding ligaments and muscles.
Improper or excessive movement of the knee joint in daily life can cause knee pain if any of the structures that make up the knee joint are damaged.
Meniscus injury
Meniscus injury refers to a series of clinical symptoms caused by the destruction of the integrity and continuity of the meniscus of the knee joint under different causes, including the rotational compression between the femoral condyle and the tibia caused by acute sprain or joint instability, and the tear of the meniscus caused by chronic strain or abnormal development of the knee joint.
Common symptoms of meniscus injuries are joint pain, limited movement, swelling and slipping sensation of the joint, and snapping joint movement. The pain is mostly located in the medial and medial joint space and the medial knee eye. Treatment depends on the severity of the injury, whether conservative or surgical.
Knee osteoarthritis
Knee osteoarthritis refers to a degenerative disease with joint pain as the main symptom caused by fibrosis, cracking, ulceration and loss of articular cartilage caused by a variety of factors.
Overload is the main cause of illness. The knee joint is swollen and painful, and sometimes there is a friction rub in the moving joint. There may be valgus deformity in the knee with medial or lateral pain. At present, the joint replacement treatment of knee osteoarthritis is a mature treatment method in the world.
Traumatic synovitis
The synovial membrane of the knee joint is the inner structure of the knee capsule, which is a thin and flexible connective tissue membrane, secretes synovial fluid to lubricate the joint, and can also provide nutrients for the meniscus and articular cartilage and excrete metabolic wastes. Due to trauma or overstrain and other factors to damage the synovium, a large amount of fluid will be produced, which will increase the pressure in the joint, if not eliminated in time, it is easy to cause joint adhesion and affect normal activities.
Patients may experience pain, swelling, tenderness, and a grinding sound of the synovium in the knee. The most obvious feature of pain is that it is exacerbated when the knee is flexed and extended. Generally, conservative treatment is the mainstay, and arthroscopic surgery can be considered when standard conservative treatment is ineffective.
Ligament injury
The ligaments around the knee joint are responsible for maintaining stability during joint movement. The ligaments around the knee joint include anterior and posterior cruciate ligaments, fibular collateral ligaments, tibial collateral ligaments, patellar ligaments, etc. When the knee joint is suddenly affected by an external force that causes abnormal movement, it may cause damage to the ligaments around the knee joint.
In clinical ligament injury, the patient will have a clear history of trauma, knee pain, tenderness, and exacerbation of pain during activity, swelling of the knee joint, and ecchymosis after a few days. Knee movement is restricted. Treatment usually depends on the location and severity of the ligament injury.
Autoimmune knee arthritis
Autoimmune arthritis is a type of aseptic inflammation. Under normal circumstances, the human body generally does not produce an immune response to its own tissue components, or only produces a weak immune response, which is called autotolerance.
When autotolerance is weakened or disordered, the body's immune system produces antibodies or immune effector substances to its own substances and causes an immune response, which is called autoimmunity. Autoimmune diseases occur when the autoimmune response exceeds the physiological limit or lasts too long, damaging its own tissues and organs and causing lesions or clinical symptoms, such as rheumatoid arthritis, the activated rheumatic cells are actually macrophages, which are a type of cell in the human body responsible for cleaning and cleaning aging cells.
This type of cell is invaded by a foreign body, causing these cells to attack all synovial cells in the joint, causing inflammation in the body and developing rheumatoid arthritis. Such patients generally have a history of autoimmune diseases, such as rheumatism, rheumatoid, ankylosing spondylitis, lupus erythematosus, and other immune diseases. The treatment of such patients is generally conservative and symptomatic relief. When the joint is severely damaged and the joint function is lost, joint replacement surgery is performed to reconstruct the joint function.
These injuries that cause knee pain cannot heal on their own with daily health care alone. It is necessary to see a doctor in time to avoid delaying the best time for treatment.