Lever Test | Rationale & Interpretation

The video tutorial explains the lever test, a special test used to assess ACL injuries. It describes the procedure, where the patient is positioned supine with legs extended, and the physical therapist applies force to the quadriceps. A positive test, indicating an ACL injury, is when the ankle does not elevate off the table. Common mistakes, such as incorrect fist placement, can lead to false negatives. The psychometrics of the test show a sensitivity of 86% and a specificity of 25%, meaning it is more reliable for ruling out ACL injuries if negative. The video concludes with a review of the procedure.

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