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Se quiere valorar la sensibilidad y la especificidad del "test del cajón anterior" utilizado para detectar lesiones del ligamento cruzado anterior. Para ello se utiliza la resonancia magnética como prueba de referencia o "gold standard" en los pacientes a los que se les aplica el test. El test fue aplicado en 180 rodillas, de los cuales 60 fueron positivos y 120 negativos. La resonancia magnética determinó que 50 de los 60 positivos del test tenían el ligamento roto, y que 100 de los 120 negativos no tenían rotura del ligamento.Señala la afirmación correcta en relación al test valorado.

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