An anterior cruciate ligament injury (also known as an ACL tear) is either a tear or sprain of the anterior cruciate ligament – one of the major ligaments in your knee. ACL injuries are highly common amongst individuals playing sports involving sudden stops or changes in direction, jumping and landing (such as soccer, football, downhill skiing and basketball). ACL tear symptoms consist of: Rapid swelling, loss of range of motion, severe pain and inability to continue activity, a feeling of instability, and a loud ‘pop’ or ‘popping’ sensation in the knee. If any signs or symptoms of an ACL injury are discovered, then a doctor should be seen immediately. An ACL injury is a form of a torn ligament in a knee.
The ACL is one of the two cruciate ligaments of the knee: The ACL and the PCL. Once a cruciate ligament is injured, it can take around 6 to 9 months for reconstruction and healing to take place. A torn ligament in the knee, and an torn ACL is a fairly common occurrence, however, given the importance of the knee joint, it can be highly consequential. Through the knee joint, one is able to walk, run, jump, stand and perform all other actions possible through the use of legs. A third-degree sprain consisting of a completely torn ligament can be highly problematic for an individual. A torn ACL is usually a second or third-degree spain, and therefore, must be taken seriously. Without a normal ACL, the knee becomes unstable and can buckle very easily.