The Active Posterior Drawer test is used as a method of diagnosing posterior cruciate ligament (PCL) injury.
- Patient seated with knees flexed 90°
- Examiner instructs patient to isometrically contracted hamstrings while the examiner stabilizes the foot and palpates knee joint line.
Modifications of this test may include the patient being instructed to contract the lateral hamstrings (posteriolateral instability) or the medial hamstrings (posteriomedial instability)
Positive Active Posterior Drawer
Posterior subluxation of the tibial plateau: Posterior knee instability