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Table 1 Comparison of preoperative and postoperative VAS and ODI scores (n = 94)

From: Treatment of L5 - S1 intervertebral disc herniation with posterior percutaneous full-endoscopic discectomy by grafting tubes at various positions via an interlaminar approach

Score

Pre-op.

Post-op. 1 M.

Post-op. 6 M.

Post-op. 12 M.

Post-op. 48 M.

Pillai’s Trace

F

P

VAS

7.193 ± 0.875

1.860 ± 0.509

1.449 ± 0.474

0.925 ± 0.650

0.914 ± 0.500

0.982

1656.173

0.001

ODI

56.032 ± 3.625

9.198 ± 1.265

8.576 ± 1.230

8.256 ± 2.360

8.147 ± 1.398

0.994

5343.054

0.001

  1. (Excluding one case of repeated calculation and two cases of re-operation, 94 cases were actually analyzed. Pre-op Preoperative, Post-op Postoperative, M months)
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