What is the purpose of the LCL (lateral collateral ligament)?

The purpose of the lateral collateral ligament (LCL) is to provide stability during lateral movements in the frontal plane. The LCL is one of the key ligaments that help maintain the integrity of the knee joint, particularly during activities that involve side-to-side motions, such as quick changes in direction or lateral movements. This stabilization is crucial for preventing excessive side-to-side movement of the knee, which can lead to injuries.

Understanding the role of the LCL highlights the importance of this ligament not only in maintaining joint stability but also in ensuring proper biomechanics during physical activities. This stability is particularly necessary during sports and exercises that require agility, as it helps in reducing the risk of ligament sprains or tears when the knee is pushed beyond its normal range of motion.