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Table 2 Comparison of the static and dynamic postural stability and the knee muscle strength in both knees between ACL rupture combined with MM tear and combined with LM tear groups

From: Poorer dynamic postural stability in patients with anterior cruciate ligament rupture combined with lateral meniscus tear than in those with medial meniscus tear

 

Involved knee

Uninvolved knee

ACL rupture with MM tear

ACL rupture with LM tear

p value

ACL rupture with MM tear

ACL rupture with LM tear

p value

Static OSI

1.7 ± 1.0

1.8 ± 0.9

0.659

1.6 ± 0.7

1.6 ± 0.4

0.948

 MD (95% CI)

− 0.1 (− 0.5, 0.3)

 

0 (− 0.2, 0.3)

 

Static APSI

1.3 ± 0.9

1.4 ± 0.8

0.600

1.2 ± 0.6

1.3 ± 0.6

0.515

 MD (95% CI)

− 0.1 (− 0., 0.3)

 

− 0.1 (− 0.3, 0.2)

 

Static MLSI

1.2 ± 0.9

1.2 ± 0.8

0.852

1.1 ± 0.7

1.0 ± 0.5

0.513

 MD (95% CI)

0 (− 0.3, 0.4)

 

0.1 (− 0.2, 0.3)

 

Dynamic OSI

1.6 ± 0.5

2.0 ± 0.8

0.001a

1.7 ± 0.6

1.8 ± 0.6

0.619

 MD (95% CI)

− 0.5 (− 0.8, − 0.2)

 

− 0.1 (− 0.3, 0.2)

 

Dynamic APSI

1.3 ± 0.5

1.5 ± 0.6

0.023a

1.3 ± 0.5

1.3 ± 0.6

0.651

 MD (95% CI)

−0.3 (− 0.5, 0)

 

0 (− 0.3, 0.2)

 

Dynamic MLSI

0.9 ± 0.4

1.0 ± 0.5

0.328

1.0 ± 0.5

0.9 ± 0.4

0.154

 MD (95% CI)

−0.1 (− 0.3, 0.1)

 

0.1 (0, 0.3)

 

Quadriceps strength

109 ± 44.1

111 ± 42.4

0.819

200 ± 40.1

202 ± 38.9

0.811

 MD (95% CI)

−2.0 (−20.1, 15.9)

 

−2.0 (−18.5, 14.5)

 

Hamstring strength

49 ± 27.2

61 ± 31.6

0.078

100 ± 21.9

110 ± 27.2

0.062

 MD (95% CI)

−12 (−23.1, 1.3)

 

−10 (− 19.7, 0.5)

 
  1. Values expressed as mean ± standard deviation
  2. Measurement unit of postural stability and knee muscle strength was degrees and Newton meter per kilogram, respectively
  3. ACL anterior cruciate ligament, APSI anterior–posterior stability index, CI confidence interval, LM lateral meniscus, MD mean difference, MLSI medial–lateral stability index, MM medial meniscus, OSI overall stability index
  4. aStatistically significant