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Table 3 Comparisons of clinical and functional outcomes between 2 groups

From: Clinical and radiological outcomes in patients who underwent posterior lumbar interbody fusion: comparisons between unilateral and bilateral cage insertion

 

Periods

Group U

(N = 19)

Group B

(N = 57)

P value

VAS_back

Preop

5.4 ± 2.4

5.7 ± 2.7

0.774

PO 1y

4.2 ± 3.0

2.3 ± 2.7

0.033

PO 2y

4.1 ± 2.8

3.2 ± 3.3

0.621

VAS_leg

Preop

5.8 ± 2.4

5.9 ± 2.8

0.534

PO 1y

2.0 ± 2.9

2.4 ± 2.6

0.637

PO 2y

3.3 ± 3.1

3.2 ± 3.0

0.878

ODI

Preop

51.0 ± 16.1

53.0 ± 18.1

0.732

PO 1y

30.6 ± 18.6

24.0 ± 15.3

0.213

PO 2y

35.0 ± 18.0

28.2 ± 18.9

0.192

EQ-5D (mobility)

Preop

3.8 ± 0.9

3.4 ± 0.9

0.154

PO 1y

2.2 ± 1.0

2.0 ± 0.9

0.380

PO 2y

2.4 ± 1.0

1.9 ± 0.9

0.094

EQ-5D (self-care)

Preop

2.6 ± 0.9

2.6 ± 1.0

0.982

PO 1y

2.0 ± 1.0

1.6 ± 0.8

0.135

PO 2y

2.0 ± 0.7

1.6 ± 0.8

0.083

EQ-5D (usual activities)

Preop

3.3 ± 1.1

3.0 ± 0.9

0.444

PO 1y

2.5 ± 0.9

1.9 ± 0.9

0.035

PO 2y

2.3 ± 1.0

2.0 ± 0.8

0.230

EQ-5D (pain/discomfort)

Preop

3.6 ± 0.9

3.5 ± 1.0

0.748

PO 1y

2.8 ± 1.0

2.4 ± 0.7

0.126

PO 2y

2.7 ± 0.7

2.4 ± 0.9

0.150

EQ-5D (anxiety/depression)

Preop

2.4 ± 1.0

2.4 ± 1.1

0.996

PO 1y

1.7 ± 1.0

1.6 ± 0.8

0.823

PO 2y

1.8 ± 0.9

1.7 ± 0.9

0.663

  1. VAS Visual analogue scale, ODI Oswestry disability index, EQ-5D EuroQol 5-dimension questionnaire