Anterior Drawer Test
Assesses anterior cruciate ligament (ACL) stability.
Performing the Test
Patient supine, hip flexed to 45°, knee flexed to 90°, with foot flat and stabilized
Grasp knee with both hands just distal to patella, with thumbs on joint line
Pull tibia forward on femur in the direction of the joint line (not directly towards examiner), ensure hamstrings are relaxed and appreciate end feel, compare both knees
Positive: anterior displacement ≥1.5 cm
False positive when there is a
posterior sag sign
Sensitivity: 48%; specificity: 87%
LR+ = 3.7; LR- = 0.6
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