The meniscus in the knee joint between femur and tibia can assist the knee joint to absorb impact and stabilize the knee joint. Meniscus is type C cartilage in the knee joint. There are two on each knee. Meniscal cartilage is a hard but soft tissue, which can be used as a buffer between the two ends of articular bone.
What is a meniscus? What caused the damage? Doctor: It is mainly related to these three factors.
When it comes to meniscus injury, the first thing that people think of is athletes. Due to strenuous exercise, there are many people with meniscus injury. Therefore, many people limit the definition of meniscus injury to athletes. Here, I want to introduce meniscus injury to you. The incentives are far more than that!
What is the cause of meniscus injury?
1. strenuous exercise
This is familiar to everyone. Basketball, football, sprint and long jump all belong to the scope of strenuous exercise. During the exercise, because running, jumping or landing quickly stops and changes direction, it will cause great pressure impact on the knee joint, which will lead to meniscus injury.
2. Knee contusion
The influence of the knee on the human body is very important, and it is also the time when the knee bears the greatest strength. Knee collision caused by falls, traffic accidents, vibrations caused by the height of the ground when walking, etc., may be hit by high pressure, thus damaging the meniscus.
3. Occupational reasons
Everyone must be curious, what is the relationship between occupation and meniscus injury? I want to tell you that it is not only important, but also important. If your job requires lifting heavy objects or squatting for a long time, the knee injury is definitely more serious than other jobs. Take heavy objects as an example! As we all know, our knees are the places where the human body bears the greatest gravity. When you move heavy objects, the pressure on your knees will be greater, and the accumulated pressure for a long time may also damage the meniscus.
Therefore, it is also important to protect the meniscus in daily life. At the same time, we must avoid excessive exercise and learn to have a proper rest in our daily life. What symptoms do we need to be alert to?
When the meniscus breaks, the most common symptom is knee pain, and the pain mostly occurs on the side. The pain is mainly tears and colic. When injured, the symptoms of knee joint swelling are mainly due to the secretion and exudation of joint synovial fluid caused by injury, which occurs in joint fluid. At the same time, the knee will also produce foreign body sensation and clicking sound. When symptoms appear, don't overdo it and don't mistake it for a normal knee injury! What symptoms can meniscus injury diagnose?
nuclear magnetic resonance
The common diagnosis method of meniscus injury is also one of the first choice examination methods.
McDonald's test
The patient was lying on his back in bed. The doctor held his calf in one hand and his knee in the other. Bend, fold and rotate the knee, and gradually straighten the knee. If the inside of the joint hurts during this process, it means that the inside of the meniscus is injured. On the contrary, it means that the lateral meniscus has been damaged. This inspection has high reference value.
Knee arthroscopy
Patients need total or partial paralysis, then tie a tourniquet on the affected limb to stop the blood flow of the affected limb, and then continuously inject sterile saline or distilled water into the joint cavity to enlarge the joint cavity, so that doctors can conveniently check different small holes.
Meniscal injuries are common in daily life. Excessive exercise must be avoided during treatment. However, it is not impossible to exercise, but to proceed in an orderly manner under the guidance of a doctor.