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Posterior Drawer Test
The Posterior Drawer test is used to detect posterior cruciate ligament insufficiency.
To perform this test, have the patient lie in the supine position with their hips flexed to 45˚ and their knees flexed to 90˚. Sit across the dorsum of the foot to stabilize its position while grasping the tibia and resting the thumbs on either side of the patellar tendon. Push the tibia backward and observe and feel for the extent of tibial displacement.
Excessive displacement of the tibia implicates posterior cruciate ligament involvement with the extent of displacement indicating severity. Substantial displacement together with a lack of firm end-feel indicates complete rupture of the posterior cruciate ligament.
Before performing the Drawer test, the anterior profile of the patient’s knee should be inspected for evidence of a posterior sag sign. This sign is described in a separate video.
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