A valgus stress test may be done to test the health of ligaments in the elbow. The valgus stress test is closely related to the varus stress test of the same joints. A valgus test gauges lateral ligament damage on the inside of the joint, which could lead to an extended look at the elbows or knees. By contrast, the varus test determines if damage has been sustained to the other side of those joints, creating a bow-legged stance. This is because a varus alignment causes the load-bearing axis of the leg to shift to the inside, causing more stress and force on the medial (inner) compartment of the knee. While you are at risk for knee osteoarthritis with a varus alignment regardless of your weight, if you are overweight or obese , your risk is substantially higher than To perform the varus stress test at 30° of knee flexion, the leg is placed over the examining table with the knee flexed at between 20°-30°. One’s fingers are then placed over the joint line while the distal femur is stabilized. A varus stress is then applied to the knee while one is holding the foot and ankle. 46 Elbow Valgus and Varus Stress Tests Elbow Valgus and Varus Stress Tests Elbow Varus Stress Test. Use: Test for varus lateral collateral ligament (LCL) instability at the elbow Procedure: Elbow flexed, slight supination, support forearm, gapping in/out to assess ligament Findings: Positive finding is pain, decreased mobility, laxity as compared with the unaffected side The varus test involves applying forces to the knee in the opposite direction. Widening of the joint on the lateral side is indicative of lateral ligament and / or posterior cruciate ligament deficiencies. Variations of these tests involve placing the knee in varying amounts of flexion and rotation. Last reviewed 01/2018 More Information About Varus vs Valgus (Elbow, Force, Stress) Varus thrust Valgus push is believed significantly less prevalent compared to varus push; the incidence of each and every uncertain. Racial differences in risk factors can help explain variations in the pure history of knee osteoarthritis. Importance of Test: The lateral collateral ligament is important for resisting varus force at the knee due to its attachments along the femur and fibular head. With the fibular nerve also located around the fibular head, any injury with a mechanism of a varus force to the knee could potentially stress the fibular nerve as well. The therapist applies a valgus stress at the knee while the ankle is stabilized in slight lateral rotation either with the hand or with the leg held between the examiner’s arm and trunk. The knee is first in full extension, and then it is slightly (20-30 degrees) so that it is “unlocked”.1 Valgus vs. Varus 1. Valgus vs. Varus 2. • According to the Direction of the Distal end of the Distal Bone forming the Joint •Valgus, when Distal Bone directed Laterally •Varus when Distal Bone directed Medially 3. Distal End of Tibia goes away from midline, Laterally, then it is Genu Valgus 4. The terms valgus and varus refer to angulation (or bowing) within the shaft of a bone or at a joint. It is determined by the distal part being more medial or lateral than it should be. Whenever the distal part is more lateral, it is called valgus. Whenever the distal part is more medial, it is called varus.
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