Diagnosis and treatment of meniscus injuries Meniscus injuries are mostly caused by torsional forces. When a leg is load-bearing and the lower leg is fixed in semi-flexion, the body and the femur rotate violently inwardly, and the medial meniscus, between the femoral condyle and the tibia, is subjected to rotational pressure, which results in meniscus tearing. Role of the meniscus Simply put, the function of the meniscus is to stabilize the knee joint, transmit the load force of the knee joint, and promote intra-articular nutrition. It is the stabilizing effect of meniscus that ensures that the knee joint will not be damaged after years of weight-bearing exercise. Etiology of meniscus injury caused by torsion external force, when a leg load bearing, calf fixed in semi-flexion, external booth, the body and the femur violently internal rotation, the medial meniscus in the femoral condyle and tibia, by the rotational pressure, which led to meniscus tear. The greater the degree of knee flexion during sprain, the more backward the tear site, lateral meniscus injury mechanism is the same, but the direction of the force is opposite, rupture of the meniscus such as part of the slide into the joint between the joints, so that mechanical obstacles occur in the joint activities, preventing the joint extension and flexion activities, the formation of the “interlocking” meniscus injuries can occur in the anterior horn, posterior horn of the meniscus, central or marginal part. Meniscal injuries can occur in the anterior horn, posterior horn, middle or edge of the meniscus. The shape of the injury can be transverse, longitudinal, horizontal or irregular, or even broken into intra-articular free body. The categories are: marginal, transverse, longitudinal, horizontal and anterior and posterior horn tears. In severe trauma cases, the meniscus, cruciate ligament and lateral collateral ligaments can be damaged at the same time. After meniscus injury, there is severe pain in the knee joint, inability to straighten automatically, and swelling of the joint. Pressure pain at the knee joint gap is an important basis for meniscus injury. Attention to the usual points 1, diet less greasy, high fat, more vegetables and fruits, less fine grains, more coarse grains. 2.When going up and down the stairs, you must pay full attention and take a steady step before moving the second step in order to avoid trauma.