The knee joint is a complex joint, classified as a hinge joint, made up of three bones connected by a system of ligaments. Among them, the anterior cruciate ligament, which crosses diagonally within the knee joint, is considered one of two cruciate ligaments responsible for stabilizing the knee.
The Knee Ligament System
Along with the posterior cruciate ligament (PCL), the medial collateral ligament (MCL), and the lateral collateral ligament (LCL), the anterior cruciate ligament (ACL) is responsible for keeping the knee joint stable and ensuring stable movement, specifically:
Anterior Cruciate Ligament (ACL): Located diagonally in the middle of the knee, responsible for rotation and forward movement of the shinbone (tibia).
Posterior Cruciate Ligament (PCL): Located at the back of the knee, responsible for backward movement of the shinbone.
Medial Collateral Ligament (MCL): Runs from the inner side of the top of the shinbone to the inner side of the bottom of the thighbone (femur), helping to keep the inner side of the knee stable.
Lateral Collateral Ligament (LCL): Also known as the ligament on the outer side of the knee, forming a narrow angle at the back, helping to keep the outer side of the knee stable.
What Is the Role of the Anterior Cruciate Ligament in the Knee Joint?
A ligament is structured as a band containing tough fibrous connective tissue, whose main component is long, durable collagen molecules. The ligaments connecting the bones help stabilize the knee joint while also guiding the coordinated movement of the kneecap (patella), femur, and tibia.
At the same time, the anterior cruciate ligament, located diagonally in the middle of the knee joint, helps prevent the tibia from sliding forward or rotating inward, maintaining the stability and flexibility of the knee during daily activities and exercise.
Preventing and Protecting the Anterior Cruciate Ligament
The anterior cruciate ligament is the knee ligament most prone to injury. Unfortunate traffic accidents, sports injuries, or sudden strong impacts can easily cause the anterior cruciate ligament to stretch or tear. When this happens, the knee will become swollen, red, and painful. In severe cases, you may lose knee joint mobility.
However, you cannot completely prevent the risk of injury. Depending on your health condition, endurance, and physical fitness, you should warm up thoroughly before participating in any sport, gradually increase your training intensity to allow your knees to adapt to movement, and absolutely avoid suddenly engaging in high-intensity training.
If you experience a mild injury, you can perform first aid yourself using the R.I.C.E method, which includes rest, ice, compression of the affected knee, and elevation of the affected lower limb.
As soon as you experience any issue related to knee injury, seek prompt examination. HIU Hospital has a team of experienced musculoskeletal specialists along with a modern equipment system that supports imaging techniques, ensuring patients receive proper, safe care and effective treatment.