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A varus deformity is an excessive inward angulation (medial angulation, that is, towards the body's midline) of the distal segment of a bone or joint. The opposite of varus is called valgus . The terms varus and valgus always refer to the direction that the distal segment of the joint points.
Valgus stress test can be performed with the examined knee in 25 degrees flexion to determine the integrity of the medial collateral ligament. Similarly, varus stress test can be performed to access the integrity of the lateral collateral ligament. The degree of collateral ligament sprain can also be assessed during the valgus and varus tests.
The terms "varus" and "valgus" always refer to the direction in which the distal segment of the joint points. The original Latin definitions for varus and valgus were the opposite of their current usage. [2] For a discussion of the etymology of these words, see the entry under varus. A mnemonic to remember the two deformities is that valgus ...
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%.
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 table. The lower extremity, supported by the examiner, is abducted. The examiner's fingers monitor the medial joint space for gapping while placing the ...
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 ...
Varus stress test at 0° and 30° - Varus stress testing is accomplished while the patient is lying supine on an examination table. The physician supports the thigh against the side of the exam table and applies a varus force to the knee joint while holding the ankle or foot , first at 0°of flexion and then at 30°.
Diagnosis may be suspected based on the history of the injury and physical examination [5] which may include anterior drawer test, valgus stress test, varus stress test, and posterior sag test. [5] An accurate physical exam can be difficult due to pain. [5] Plain X-rays, CT scan, ultrasonography, or MRI may help with the diagnosis.