Learn about the ligament rupture in front of the knee

The human body has 4 ligaments, the hard tissues in the knee that help fix joints. Anterior ligament (ACL) – is the most vulnerable ligament.

Lateral knee ligaments help prevent abnormal horizontal movements of the knee, the medial ligament (MCL) and lateral ligament (LCL) are located inside and outside of the knee.

Ligament in front of the knee (ACL) is the most common ligament in the knee. It is often injured in abnormal rapid movements or twists such as when the knee stops or changes direction suddenly. Stretching the front ligament is caused by injuries while playing sports (football, volleyball, badminton, tennis …), due to traffic accidents (collisions with motorcycles, bicycles, cars …) and due to an accident (falling down the stairs, on the floor…).


Injury while playing sports accounts for up to 70% (mostly indirectly). The legs are suddenly twisted while running, the feet are suddenly fixed by falling into the pit or being stepped on by others ( kick the ball) or the player turns too quickly (tennis), or by jumping high and then falling to the ground in a non-dominant posture or standard vacuum posture (volleyball, basketball).

The fact that the knee ligament dilatation mainly causes pain in the knee, is difficult to exercise, so the patient sometimes mistakenly believes this is just a common bone and joint disease that subjectively refuses to treat early. Therefore, when seeing symptoms of ligament relaxation of the knee, the patient should see a doctor to diagnose the disease properly.



– Pain immediately after injury

– Swelling of the knee within 4-12 hours, affecting mobility

– Creaking sound when the ligament is broken

– Move your knees in a difficult way

– limping with sore feet

– Feeling unstable in sports activities as well as daily activities.

Time after about 2-3 weeks, then the signs of aches and pains have disappeared, but the phenomenon of muscle atrophy in the front of the knee. If the muscles in the knee are healthy, the patient will not experience knee laxity because the muscles have compensated for the function of the ligament. However, most of the cases of ligament dilatation have loose knee joints because the tibial plateau has nothing fixed so it will be dislocated out causing pain.


If left for longer knee will be damaged due to degenerative cartilage caused. At this time, the tibial plateau is dislocated many times and the knee will often hurt when walking.

Anterior ligament tear is one of the most common injuries in the knee joint, can happen to anyone, any age.

This entry was posted in Ankle Foot Articles, Sports Injury and tagged , , , . Bookmark the permalink.