Patients

62

Sex (M/F)

31/31

Mean age (years)

68.88 ± 9.54

Level number (1/2/3/4)

23/28/10/1

Spondylolisthesis (Yes/Not)

7/55

Low back pain VAS

Pre-operative

7.24 ± 2.62

Post-operative

3.96 ± 2.26

At follow-up

2.75 ± 2.95

Legs pain VAS

Pre-operative

8.08 ± 1.95

Post-operative

3.88 ± 2.38

At follow-up

2.80 ± 3.26

Oswestry Disability Index (%)

Pre-operative

59.03 ± 11.98

Post-operative

22.64 ± 17.61

At follow-up

16.51 ± 16.24

Mean follow-up (months)

16.38 ± 11.12