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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)