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Table 4 Clinical outcomes: mean COMI score, mean VAS score for back pain, and mean VAS score for leg pain preoperatively and at the 1-year and 2-year FU

From: Clinical experiences with a PEEK-based dynamic instrumentation device in lumbar spinal surgery: 2 years and no more

 

Preoperatively

1-year FU

2-year FU

COMI score

9.0 ± 0.9 (range 6.7–10.0)

4.2 ± 2.5 (range 0–7.5)

4.7 ± 2.7 (range 0.2–8.3)

VAS back pain

7.7 ± 2.4 (range 0–10)

4.25 ± 2.4 (range 0–8)

4.7 ± 2.3 (range 0–9)

VAS leg pain

7.1 ± 2.9 (range 0–10)

2.2 ± 3.2 (range 0–8)

2.3 ± 2.35 (range 0–8)