The lateral collateral ligament of the knee provides stability, especially during posterolateral movement of the joint. It connects the lower outer section of the femur to the upper part of the fibula.
Most injuries occur with the involvement of other tendons in the posterolateral area during extreme varus movements (bending the knee outward in an arc due to an impact from the inside) or with external rotational forces on the tibia.
Symptoms include swelling, joint locking, pain on the outer side of the knee, and a feeling of instability during certain movements.
A diagnosis is made through clinical and physical examinations. An MRI may be necessary in certain cases.
Treatment combines physical therapy and medication. These include rest, weight-bearing, and immobilization of the knee. In cases of severe injury with instability, surgery may be necessary.
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