Knee sprains and ligament injuries are common occurrences that happen when the ligaments in the knee are stretched or torn. Ligaments play a crucial role in connecting two or more bones at a joint, providing stability and enabling movement. In the knee, there are four main ligaments responsible for different aspects of stability. The collateral ligaments, found on the sides of the knee, provide side-to-side stability, while the cruciate ligaments, located inside the knee joint, offer stability during rotational and forward-backward movements. Various movements can lead to damage in any of these important knee tissues.
Understanding Anterior Cruciate Ligament (ACL) Injuries
An anterior cruciate ligament (ACL) injury is a prevalent knee sprain among athletes. The ACL is a crucial ligament that contributes to the stability of the knee by forming an “X” shape and preventing front-to-back or back-to-front movements. This particular type of knee sprain typically happens as a result of sudden stops or twists, directional changes, excessive hyperextension, or impact to the outer knee or lower leg.
Understanding the Posterior Cruciate Ligament (PCL)
The posterior cruciate ligament (PCL) is a ligament that is frequently sprained among athletes, specifically those involved in rugby, soccer, football, or basketball. Functioning as the other half of the stabilizing “X” structure in the knee, the PCL is commonly injured due to direct impact, such as forcefully landing on a bent knee or getting kicked in the knee while participating in sports.