Skip to main content

Table 1 Demographics and preoperative data

From: Adding a modified Lemaire procedure to ACLR in knees with severe rotational knee instability does not compromise isokinetic muscle recovery at the time of return-to-play

 

Lemaire group

n = 35 knees

Reference group

n = 52 knees

p-value*

n (%)

 

n (%)

  

Mean ± SD

Range

Mean ± SD

Range

 

Demographics

 Male sex

28 (80%)

 

29 (56%)

 

0.021

 Age (years)

23.0 ± 6.3

(15–37)

34.2 ± 10.5

(16–53)

< 0.001

 BMI (kg/m²)

23.5 ± 2.5

(20–29)

23.9 ± 2.7

(18–31)

n.s.

 Tegner score** (pre-injury)

7.5

(7–9)

6.5

(7–9)

0.001

Preoperative data

 Lachman

    

n.s.

  Hard endpoint

0 (0%)

 

0 (0%)

  

  Delayed hard endpoint

0 (0%)

 

4 (8%)

  

  Soft endpoint

35 (100%)

 

48 (92%)

  

 Pivot Shift

    

< 0.001

  None

0 (0%)

 

0 (0%)

  

  Glide

0 (0%)

 

51 (98%)

  

  Clunk

32 (91%)

 

0 (0%)

  

  Gross

3 (9%)

 

0 (0%)

  

Lysholm score

65.4 ± 17.9

(35–100)

68.2 ± 16.7

(34–99)

n.s.

IKDC subjective score

61.3 ± 15.0

(23–91)

59.7 ± 13.1

(22–86)

n.s.

Static ATT

2.6 ± 3.7

(5–10)

1.5 ± 2.3

(4–6)

n.s.

Dynamic ATT (Differential laxity)

7.9 ± 3.9

(0–17)

5.9 ± 3.6

(3–14)

0.022

Extension deficit

1 (3%)

 

1 (2%)

 

n.s.

Flexion range

135.4 ± 13.7

(60–140)

133.4 ± 7.5

(115–140)

0.022

  1. Abbreviations: BMI Body Mass Index, IKDC International Knee Documentation Committee, ATT Anterior Tibial Translation, Op Operated, Contra Contralateral
  2. *Fisher’s exact test or Wilcoxon rank sum test; **Tegner score reported as Median and Interquartile range