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Table 4 Comparison of postoperative results between microfracture group and no microfracture group

From: Comparison of the regeneration of cartilage and the clinical outcomes after the open wedge high tibial osteotomy with or without microfracture: a retrospective case control study

 

Microfracture (n = 57)

No microfracture (n = 30)

p value

Weight bearing line ratio (%)

58.6 ± 7.2

57.5 ± 6.2

0.060*

Hip-knee-ankle angle (°)

Valgus 2.3 ± 1.4

Valgus 1.9 ± 1.6

0.270*

Joint line convergence angle (°)

1.9 ± 1.7

2.1 ± 2.1

0.705*

Ahlbäck grade (grade 0/1/2/3/4)

11/2/38/7/1

5/23/2/0/0

0.699†

Flexion contracture (°)

2.2 ± 1.2

1.8 ± 1.6

0.403*

Further flexion (°)

134.9 ± 7.2

136.0 ± 6.6

0.492*

WOMAC scores

Total

9.2 ± 6.1

10.2 ± 7.8

0.513*

Pain

1.3 ± 1.2

1.7 ± 1.6

0.278*

Stiffness

1.1 ± 1.4

1.3 ± 1.5

0.433*

Function

6.7 ± 4.5

7.2 ± 5.9

0.678*

KS scores

KS knee scores

89.1 ± 10.7

88.3 ± 10.8

0.745*

KS function scores

88.3 ± 10.8

86.1 ± 12.3

0.634*

  1. The values are presented as mean ± standard deviation. *Derived using the Student’s t-test. †Derived using the linear by linear association. WOMAC Western Ontario and McMaster Universities