![]() ![]() ![]() It is an interesting problem, particularly seen in children and adolescents, and occurs when an otherwise normal structure in the knee becomes a source of knee pain due to injury or overuse.It refers to an internal derangement of the knee which prevents normal functioning of the knee joint. This can result in a disorder called plica syndrome.Yet, when repeating the same knee movement too often, such as bending and straightening the knee, or in the case of trauma to the knee, these plicae can become irritated and inflamed. The elastic nature of synovial plicae allows normal movement of the bones of the tibiofemoral joint, without restriction.It is estimated that plicae are present in about 50% of the population. Various degrees of separation of the cavities are seen in the human knee. The result is that in these individuals plicae can be observed, which represents inward folds of the synovial membrane in the knee joint.Yet, in many individuals, the mesenchymal tissue is not fully resorbed and consequently, the cavitation of the knee joint remains incomplete. The movement of the fetus in the uterus contributes to this resorption. This tissue usually starts to involute (fold inward) at 8-12 weeks of fetal growth and is eventually resorbed, leaving a single empty area between the distal femoral and proximal tibial epiphysis: a single knee cavity.This tissue forms membrane which divides the knee into 3 compartments: the medial and lateral tibiofemoral compartments and the suprapatellar bursa.Plicae essentially consist of mesenchymal tissue which is formed in the knee during the embryological phase of development. A synovial plica is a shelf-like membrane between the synovium of the patella and the tibiofemoral joint.Physiotherapy Management of Plica syndrome. ![]()
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