Lateral Pivot Shift Test for ACL Tears The Lateral Pivot-Shift test is the most specific of all ACL tests with a specificity of 98% with a weak sensitivity of 24%. The test needs some practice to perform and makes use of the iliotibial band which shifts its function from a knee extensor to a knee flexor. Watch the video to learn how the test is performed and to learn about the biomechanical explanation for the test! | Physiotutors