Cruciated ligament of knee joint: an important stable structure of knee joint, hinged between femoral intercondylar fossa and tibial intercondylar protuberance, which can prevent tibia from moving forward and backward along femur. The cruciate ligament of the knee joint can be divided into two parts: the anterior cruciate ligament starts from the medial surface of the lateral femoral condyle, inclines forward and downward, and ends at the anterior part of the tibial intercondylar crest and the anterior corner of the medial and lateral meniscus. The posterior cruciate ligament starts from the lateral surface of the medial femoral condyle, inclines backward and downward, and ends at the posterior part of the tibial intercondylar ridge and the posterior corner of the lateral meniscus. When the knee joint moves,

At this time, some fibers in each of the two ligaments are in a state of tension. Therefore, the anterior cruciate ligament can prevent the tibia from moving forward, and the posterior cruciate ligament can prevent the leg bone from moving backward, and can also limit the hyperextension, hyperflexion and rotation of the knee joint. Cruciate ligament injury usually occurs at the same time as tibial collateral ligament or meniscus injury.

Because people generally don't know enough about anterior cruciate ligament injury, it doesn't affect daily life after injury, and a large number of anterior cruciate ligament injuries are in the general population! If the cruciate ligament injury is not treated for more than 3 months, meniscus injury will almost become inevitable, followed by irreversible patients such as articular cartilage injury and joint degeneration. Experts remind: If you feel that you can't make an emergency stop or turn sharply during walking, you should see a sports medicine doctor to determine whether the anterior cruciate ligament is damaged!