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Table 2 Measures of baseline severity and surgical outcomes in the two groups

From: Comparison of conventional fenestration discectomy with Transforaminal endoscopic lumbar discectomy for treating lumbar disc herniation:minimum 2-year long-term follow-up in 1100 patients

Measure

Group A

Group B

VAS-LP

 Preoperative

7.1 ± 1.3

7.2 ± 1.2

 1-day postoperative

2.0 ± 0.9*

1.9 ± 0.8*

 1-month postoperative

1.8 ± 0.4Δ

1.7 ± 0.5Δ

 Last follow-up

0.6 ± 0.07+

0.6 ± 0.08+

VAS-BP

 Preoperative

7.9 ± 1.0

8.1 ± 1.1

 1-day postoperative

4.4 ± 0.8*

2.8 ± 0.9*#

 1-month postoperative

2.0 ± 0.5Δ

1.9 ± 0.6Δ

 Last follow-up

0.7 ± 0.04+

0.7 ± 0.05+

ODI, %

 Preoperative

68.3 ± 14.1

69.2 ± 12.2

 1-day postoperative

24.2 ± 3.1*

23.9 ± 3.2*

 1-month postoperative

15.6 ± 0.1Δ

16.1 ± 0.2Δ

 Last follow-up

7.9 ± 0.04+

8.3 ± 0.03+

  1. ODI Oswestry Disability Index, VAS-LP Visual Analogue Scale for Leg Pain, VAS-BP Visual Analogue Scale for Back Pain
  2. *P < 0.05 vs. preoperative
  3. ΔP < 0.05 vs. 1-day postoperative
  4. +P < 0.05 vs. 1-month postoperative
  5. #P < 0.05, Group A vs. Group B
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