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Table 2 The amount of tibial rotation in degrees in 26 pair of knees suspected for unilateral ACL injury with a 6 Nm torque

From: A novel test for assessment of anterolateral rotatory instability of the knee: the tibial internal rotation test (TIR test)

  injured side intact side mean differencea
30°of flexion
 internal rotation 32.2 ± 11.8 32.2 ± 9.7 0.0 ± 11.1
 external rotation 39.4 ± 9.6 37.3 ± 9.6 2.1 ± 8.4
 total rotation 71.6 ± 17.3 69.4 ± 16.5 2.2 ± 15.0
60° degrees of flexion
 internal rotation 24.5 ± 7.8 25.5 ± 7.5 −1.1 ± 8.5
 external rotation 39.7 ± 6.7 38.0 ± 8.9 1.8 ± 8.5
 total rotation 64.2 ± 11.8 63.5 ± 13.8 0.7 ± 14.0
90° degrees of flexion
 internal rotation 24.1 ± 8.9 25.3 ± 9.4 −1.2 ± 12.3
 external rotation 40.8 ± 8.1 39.1 ± 10.2 1.7 ± 7.2
 total rotation 64.9 ± 11.6 64.4 ± 15.3 0.5 ± 13.8
  1. aNot statistically significant