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The medial collateral ligament (MCL), also called the superficial medial collateral ligament (sMCL) or tibial collateral ligament (TCL), [1] is one of the major ligaments of the knee. It is on the medial (inner) side of the knee joint and occurs in humans and other primates. Its primary function is to resist valgus (inward bending) forces on ...
Patellofemoral pain syndrome (PFPS; not to be confused with jumper's knee) is knee pain as a result of problems between the kneecap and the femur. [4] The pain is generally in the front of the knee and comes on gradually. [2] [4] Pain may worsen with sitting down with a bent knee for long periods of time, excessive use, or climbing and ...
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 planted and the femur rotated externally result in a tear of the lateral meniscus. [10]
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
Ligamentous laxity, or ligament laxity, is a cause of chronic body pain characterized by loose ligaments.When this condition affects joints in the entire body, it is called generalized joint hypermobility, which occurs in about ten percent of the population, and may be genetic.
Patellar dislocation occurs mainly in youths (under age 20) engaged in sports that may involve accidental rotation of the knee while in flexion, a movement clinically called valgus, which is the cause of some 93% of patellar dislocation cases. [3]
On projectional radiography, the degree of varus or valgus deformity can be quantified by the hip-knee-ankle angle, [7] which is an angle between the femoral mechanical axis and the center of the ankle joint. [8] It is normally between 1.0° and 1.5° of varus in adults. [9] Normal ranges are different in children. [10]
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%.