Lelli’s Test / Lever Sign

Execution:

  1. Patient is in supine lying position
  2. The examiner makes a fist and places it under the proximal 1/3 of the calf on the leg to be tested
  3. With the other hand, the examiner applies a moderate downward force on the distal part of the femur

 

Positive Outcome: If the patient’s heel does not rise off of the table, a partial or complete ACL tear is suspected

Study

Reliability

Sn Sp LR+

LR-

Lelli et al. (2014)

NA

100 100

0

Jarbo et al. (2017)

NA

63 90 6.3

0.41

Mulligan et al. (2017)

NA

37 72 1.32

0.88

Gürpınar et al. (2019)

Inter-rater ĸ=0.78

91.9 93.8 14.82

0.09

Massey et al. (2017)

NA

82 80 4.15

0.21

Huang et al.  (2022)

NA

79 (75-83) 91 (87-95) 9.56 (2.76-33.17)

0.23 (0.12-0.46)

Tanaka et al. (2022)

NA

82 (76-87) 88 (82-93) 6.49 (3.92-10.73)

0.21 (0.11-0.40)

Sokal et al. (2022)

NA

83
(68-92)
91
(83-95)
9.66
(0.01-17.3)

0.19
(0.09-0.34)

Comment: With the exception of the results by Jarbo et al. (2017) and Mulligan, the Lever Sign shows good accuracy to confirm and rule out ACL tears