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BioMed Research International
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2015
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Article
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Tab 3
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Clinical Study
Effects of Lordotic Angle of a Cage on Sagittal Alignment and Clinical Outcome in One Level Posterior Lumbar Interbody Fusion with Pedicle Screw Fixation
Table 3
Oswestry disability index and visual analogue scale of low back pain of both groups.
Pre-op Oswestry
2 wk Oswestry
6-month Oswestry
1-year Oswestry
Pre-op VAS
2 wk VAS
6-month VAS
1-year VAS
PEEK (4)
23.1 (±5.5)
17.2 (±4.1)
13.4 (±4.0)
18.3 (±6.3)
7.3 (±1.2)
3.1 (±1.5)
2.5 (±1.5)
2.3 (±1.3)
PEEK (8)
24 (±5.4)
17.1 (±5.4)
12.9 (±4.2)
18.4 (±7.1)
7.4 (±1.7)
3.0 (±1.7)
2.3 (±1.3)
1.6 (±1.6)
value
*
0.399
0.959
0.633
0.084
0.844
0.889
0.612
0.150
By
-test.