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Introduccion: La estructura histologica de los ligamentos, incluyendo el LCA, esta compuesta por colageno y elastina envueltos en una matriz de agua y proteoglicanos. El colageno es el componente principal de los tendones y ligamentos, representa el 65 – 75% de su peso en seco. El objetivo del presente estudio es realizar una evaluacion histopatologica de los fragmentos de LCA rotos tomados en el momento del acto quirurgico por artroscopia. Material y metodos: Estudio prospectivo observacional sobre 50 casos con rotura de LCA. Se tomaron muestras de LCA en procedimiento artroscopico y se evaluo la histopatologia del ligamento. Resultados: Se mencionan los resultados en base a resultados de anatomia patologica y evolucion post operatoria. Conclusion: No se evidenciaron cambios degenerativos en la histopatologia que justifiquen la rotura ligamentaria. Palabras claves: ligamento cruzado anterior, LCA, Histopatologia, anatomia patologica. Nivel de evidencia: IV serie de casos. Abstract Introduction : Histological structure of ligaments, including the anterior cruciate ligament, is composed of collagen and elastin wrapped in a matrix of water and proteoglycans. Collagen is the main component of tendons and ligaments, accounting for 65-75% of its dry weight. The aim of the present study is to perform a histopathological evaluation of the ruptured anterior cruciate ligament fragments taken at the time of surgical procedure by arthroscopy. Methods : A prospective observational study of 50 cases with anterior cruciate ligament rupture. Anterior cruciate ligament samples were taken in an arthroscopic procedure and histopathology of the ligament was evaluated. Results : Pathology results and post-operative evolution are mentioned. Conclusion : Degenerative changes were observed in the histopathology exam; it cannot be demonstrated if these changes are previous or posterior to ligament rupture.

revista de la asociación argentina de ortopedia y traumatología

Estudio histopatológico en rotura aguda del ligamento cruzado anterior de rodilla. [Histopathological study in acute rupture of the anterior cruciate ligament of the knee].