PEEK versus Silicon Interspinous Spacer for Reduction of Supradjacent Segment Degeneration following Decompression and Short-Segment Instrumentation for Degenerative Lumbar Spinal Stenosis

Table 6

Functional outcomes of 55 patients who received short lumbosacral fusion.

Group

ODI

VAS-Leg

VAS-Back

Preop

Post Op

pre/post

Post Op-2

F-up

Post-2/F-up

Preop

Post Op

pre/post

Post Op-2

F-up

Post-2/F-up

Preop

Post Op

pre/post

Post Op-2

F-up

Post-2/F-up

ODI

6 months

P-value

2 Years

max

P-value

VAS

6 months

P-value

2 Years

max

P-value

VAS

6 months

P-value

2 Years

max

P-value

R

37±12

18±16%

0.001

19±14%;

20±15%;

0.56

5.9 ± 1.1

2.3 ± 0.5

0.001

2.4 ± 0.4

2.6 ± 0.5

0.56

4.3 ± 0.4

1.5 ± 0.3

0.001

1.6 ± 0.4

1.6 ± 0.3

0.91

S

39±12%

20±16%

0.001

21±15%

20±12%

0.84

5.5 ± 0.5

2.1 ± 0.4

0.001

2.5 ± 0.6

2.7 ± 0.5

0.65

4.7 ± 1.1

2.0 ± 0.1

0.001

2.2 ± 021

2.3 ± 0.2

0.67

C

38±12%

19±14%.

0.001

20±13%.

21±13%.

0.91

5.7 ± 0.3

2.2 ± 0.2

0.001

2.6 ± 0.3

2.6 ± 0.5

0.82

4.7 ± 0.3

2.1 ± 0.2

0.001

2.1 ± 0.3

2.1 ± 0.23

0.56