[Roentgenologic signs of anterior cruciate ligament insufficiency].

Of 174 patients suffering from an insufficiency of the anterior cruciate ligament who had been treated between 1974 and 1987 at the Hohenems hospital by ligament plasty, 33 (18.9%) showed a significant dilation and raising of the median tubercle of the intercondylar eminence without any other arthrotic changes. Of the 35 cases where the trauma had occurred more than three years ago, 21 (39.6%) showed this sign, which, therefore, can be considered as a diagnostic pointer.