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An MCL injury can be very painful and is caused by a valgus stress to a slightly bent knee, often when landing, bending or on high impact. It may be difficult to apply pressure on the injured leg for at least a few days. It can be caused by a direct blow to the lateral side of the knee.
Damage to the meniscus due to rotational forces directed to a flexed knee (as may occur with twisting sports) is the usual underlying mechanism of injury. A valgus force applied to a flexed knee with the foot planted and the femur rotated internally can result in a medial meniscus tear. A varus force applied to the flexed knee when the foot is ...
Testing of the knee joint should be done using the following techniques and the findings compared to the contralateral, normal knee: [4] [5] Valgus stress at 0° and 20°- This test puts direct stress on the medial knee structures, reproducing the mechanism of injury. Valgus stress testing is done with the patient supine on the exam
Pellegrini-Stieda syndrome is an insult to the medial collateral ligament (MCL), causing damage and acute inflammation that sets into motion and delays ossification. [2] This insult is described as a macro trauma causing valgus stress with disruption of the MCL fibers.
The most common knee problems are: soft tissue inflammation, injury, or osteoarthritis. The mechanism of the knee injury can give a clue of the possible structures that can be injured. For example, applying valgus stress on the knee can cause medial collateral ligament rupture, meanwhile a varus force can cause lateral collateral ligament rupture
Most commonly, varus and valgus stress to the knee is added. These variations constitute different tests with different statistical performance and should not be confused with the original. According to some sources, the sensitivity of the McMurray test for medial meniscus tears is 53% and the specificity is 59%.
Injury is most often sustained when a lateral (from the outside) force impacts the knee while the foot is fixed on the ground. The strong valgus or rotary force to the knee tears the ACL, MCL, and medial meniscus all together. This type of injury occurs often in contact sports such as football, rugby, or motocross.
The valgus stress test or medial stress test is a test for damage to the medial collateral ligament of the knee. It involves placing the leg into extension, with one hand placed as a pivot on the knee. With the other hand placed upon the foot applying an abducting force, an attempt is then made to force the leg at the knee into valgus. If the ...