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Table 1 Basic characteristic

From: A radiographic model predicting the status of the anterior cruciate ligament in varus knee with osteoarthritis

Variables

Total (n = 122)

ACLF (n = 96)

ACLD (n = 26)

p

Age(years)

66.82 ± 8.40

66.36 ± 8.71

68.50 ± 7.24

0.254a

Sex

   

0.560b

 Female

101 (82.8%)

78 (81.2%)

23 (88.5%)

 

 Male

21 (17.2%)

18 (18.8%)

3 (11.5%)

 

Side

   

0.658c

 Left

61 (50.0%)

52 (54.2%)

9 (34.6%)

 

 Right

61 (50.0%)

44 (45.8%)

17 (65.4%)

 

MWPPT%

49.96 ± 6.41

47.83 ± 4.69

57.83 ± 5.93

 < 0.001d

TSS

   

0.376b

 0

76 (62.3%)

57 (59.4%)

19 (73.1%)

 

 1

20 (16.4%)

16 (16.7%)

4 (15.4%)

 

 2

26 (21.3%)

23 (23.9%)

3 (11.5%)

 

CTFS (mm)

5.17 ± 1.47

4.91 ± 1.24

6.13 ± 1.89

0.003d

HKA (°)

7.66 ± 3.81

6.94 ± 3.07

10.34 ± 5.03

0.003a

mLDFA (°)

89.32 ± 2.16

89.19 ± 2.12

89.80 ± 2.31

0.078a

mPTA (°)

85.68 ± 2.08

85.82 ± 2.20

85.18 ± 1.57

0.095a

PTS (°)

8.98 ± 1.97

8.62 ± 1.90

10.28 ± 1.73

 < 0.001d

  1. ACLF Anterior cruciate ligament-functional, ACLD Anterior cruciate ligament-deficient, MWPPT% the maximum wear point of the proximal tibia%, TSS Tibial spine sign, CTFS Coronal tibiofemoral subluxation, HKA Hip–knee–ankle angle, mLDFA mechanical lateral distal femoral angle, mPTA mechanical proximal tibial angle, PTS Posterior tibial slope
  2. a the independent-samples t-test
  3. b the Fisher’s exact test
  4. c the Chi-square test
  5. d the Mann–Whitney U-test