膝关节资料（Knee joint data）.docVIP

膝关节资料（Knee joint data） Knee meniscus fibrocartilage tissue, a peripheral edge thick, thin wedge, look from the plane for the half moon, called meniscus; filled in between the femoral condyle and tibial condyle, enhance the stability of the knee joint function. The structure and function of the menisci determine that it is one of the most vulnerable tissues in the knee joint. Meniscus injuries are more likely to occur in people who engage in strenuous exercise and special work. Etiology pathology Knee joint meniscus injury is common in knee joint flexion and extension, accompanied by internal and external rotation of the crus or inside and outside, causing the meniscus conflict, exercise caused. When the knee joint flexion, femoral condyle sliding in the meniscus, and push forward the meniscus, backward flexion; rotation of knee joint meniscus, and femoral condylar consistent activity, its rotation occurs between the meniscus and tibial plateau, one side of the other side of the meniscus forward, half back plate. When the knee joint is in the semi flexion, the internal rotation of the lower leg or external rotation, the meniscus is crowded and can not move. Thus, the meniscus or the fibrous tissue of the meniscus itself, or the fibrous tissue surrounding it, will pull apart when it is suddenly stretched or further rotated. 1. if the knee joint is flexed and the tibia is fixed, the external rotation of the femur can cause the posterior horn of the lateral meniscus or the medial meniscus posterior horn injury. 2. strong internal rotation of the femur (or external rotation of the leg) under the knee flexion condition, which causes the anterior meniscus of the lateral meniscus or the anterior part of the medial meniscus. Long term crush wear can cause degeneration and tear easily. Abnormal meniscus loosening, instability of the joint ligament, or obesity, weight gain and other factors are all factors that are vulnerable to meniscus injury. According to foreign literature