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Lever Sign Test
From WikiSM
Other Names
- Lever Sign Test
- Lever Test
- Lelli's Test
Purpose
Illustration of how to perform the lever sign test[1]
- To evaluate the integrity of the Anterior Cruciate Ligament as a cause of knee pain
Description
- The patient is supine, leg is fully extended on the examination table
- If patient will tolerate, note effused knees are hard to extend
- Examiner places a closed fist under the tibia at the level of the tibial tuberosity
- This will cause the knee to flex slightly
- With the other hand, the examiner places a downward pressure to the distal femur above the knee
- This causes the fist to act as a lever
- Normal test (intact ACL)
- The patients foot will rise appropriately off the bed with the downward force
- Positive test (ruptured ACL)
- The patients foot will remain in contact with the bed with the addition of downward force
Pathology
Evidence
- Lelli et al:[2]
- Original authors who designed the exam
- Sensitivity: 100%
- Jarbo et al[1]
- Sensitivity: 63%
- Specificity: 90%
See Also
References
- ↑ 1.0 1.1 Jarbo, Keith A., et al. "Accuracy of the lever sign test in the diagnosis of anterior cruciate ligament injuries." Orthopaedic journal of sports medicine 5.10 (2017): 2325967117729809.
- ↑ Lelli A, Di Turi RP, Spenciner DB, Dòmini M. The "Lever Sign": a new clinical test for the diagnosis of anterior cruciate ligament rupture. Knee Surg Sports Traumatol Arthrosc. 2016 Sep;24(9):2794-2797.
Created by:
John Kiel on 1 February 2020 13:43:25
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Last edited:
16 April 2023 19:05:04
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