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      Synovial knee plica in newborn cadaver knee: a comparison between Anatomy and Arthro-TC Translated title: Plica sinovial de joelho em cadáveres de recém-nascidos: comparação entre Anatomia e Artro-TC

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          Abstract

          Fifty-two newborn knees were used to verify the validity of the arthro-TC of double contrast for the diagnosis of normal synovial plicas, aiming at classifying and verifying their quantitative incidence and ethnic distribution. The plica synovialis mediopatellaris was identified in brown (60%), white (40%) and black races (9%) in this study. The incidence in black people was quite low as compared to white and brown people. The most commonly found folds were the plica synovialis infrapatellaris (69%) followed by the plica synovialis suprapatellaris (44%) and plica synovialis mediopatellaris (31%). Plicas were not found in 6% of the knees. The communication of bursa patellares with the articulation of the knee is present at birth in 85% of newborns. Identification of plica synovialis infrapatellaris was difficult because it is covered by abundant fat tissue. Arthro-TC was studied and analyzed by six observers, three radiologists and three orthopedic surgeons. The results showed a medium sensibility of 72% and a medium specificity of 60% for radiologist versus 89% and 61% for orthopedist surgeons, respectively.

          Translated abstract

          Em 52 joelhos de cadáveres de recém-nascidos, foi testada a validade da artro-TC de duplo contraste para o diagnóstico de plicas sinoviais normais, fazendo a comparação anatômica e artroscópica com comprovação histológica, objetivando tanto classificar e verificar a sua incidência como também sua relação com as raças. Os resultados encontrados mostram que a plica mediopatelar está, relacionada com as raças pardas, brancas e negras, respectivamente, em 60%, 40% e 9%. Em comparação com as raças parda e branca, a negra tem a tendência à não ter plicas sinoviais. A plica Infrapatelar foi a mais encontrada nos joelhos estudados 69%, seguida da suprapatelar 44% e a mediopatelar 31%. Não foram observadas plicas em 6% dos joelhos. A comunicação da bolsa suprapatelar com a articulação do joelho ocorre em 85 % das pessoas ao nascer. A plica infrapatelar tornou-se difícil de identificar, por estar envolvida em abundante gordura infrapatelar. A Artro-TC foi estudada e analisada por seis observadores, três radiologistas e três ortopedistas e seus resultados mostraram uma sensibilidade média de 72% com uma especificidade média de 60% para radiologistas, e uma sensibilidade média de 89% e especificidade média de 61%, para ortopedistas.

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          Most cited references48

          • Record: found
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          Classification of natural killer (NK) cell and NK-like T-cell malignancies.

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            • Record: found
            • Abstract: not found
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            Arthroscopic study on Iino’s band (plica synovialis mediopatellaris)

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              • Record: found
              • Abstract: not found
              • Article: not found

              Arthroscopy of the plicae--synovial folds and their significance.

              D. Patel (1978)
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                aob
                Acta Ortopédica Brasileira
                Acta ortop. bras.
                Sociedade Brasileira de Ortopedia e Traumatologia (São Paulo )
                1809-4406
                January 2003
                : 11
                : 1
                : 32-41
                Affiliations
                [1 ] Universidade Federal do Ceará Brazil
                [2 ] Universidade Federal do Ceará Brazil
                Article
                S1413-78522003000100005
                10.1590/S1413-78522003000100005
                303b4e01-fc28-42e8-ab1a-e311dc83990c

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1413-7852&lng=en
                Categories
                ORTHOPEDICS

                Orthopedics
                Knee,Synovial membrane,Bursa, synovial,Arthrography,Synovial plicae,Joelho,Membrana sinovial,Bolsa sinovial,Artrografia,Plica sinovial

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