Table 4 Results of the patient reported outcome.

From: The MRI-based vertebral bone quality score is a predictor of pedicle screw loosening following instrumented posterior lumbar fusion

  

Non-loosening

Screw loosening

p-value

ODI

Pre-operation

25.78 ± 8.24

29.20 ± 6.92

0.065

Post-operation

13.59 ± 7.71

15.80 ± 6.24

0.196

Back VAS

Pre-operation

5.53 ± 1.78

5.63 ± 2.31

0.833

Post-operation

2.29 ± 1.50

3.40 ± 0.89

0.001

Leg VAS

Pre-operation

5.84 ± 2.30

6.20 ± 1.94

0.487

Post-operation

2.33 ± 1.88

2.20 ± 1.73

0.757

  1. ODI indicates Oswestry Disability Index. VAS indicates visual analog scale.
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