Posterior sag signPosterior drawer (at 90° flexion)Quad active test
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A 20-year-old college running back sustains a knee injury after being tackled from the medial aspect of his right knee. On examination, he has a knee effusion and tenderness laterally. He has a 1A Lachman and a normal posterior drawer test. He has symmetric rotation with his knee flexed at 90 degrees, but 20 degrees of increased external rotation with his knee flexed to 30 degrees. Which of the following choices is the appropriate surgical treatment?
ACL reconstruction with bone-tendon-bone autograft
Combined ACL and posterolateral corner reconstruction
Posterolateral corner reconstruction
Combined PCL and posterolateral corner reconstuction
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A 22-year-old rugby player presents for evaluation of knee swelling. During a match, he sustained a valgus knee injury. He is neurovascularly intact on physical exam. Imaging obtained after injury is shown in Figures A-D. Which of the following provocative tests on physical examination would be most sensitive for detecting this combined injury?
Posterior drawer test
Anterior drawer test with tibia in neutral
Anterior drawer test with tibia in external rotation
Knee dial test
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