Skip to main content

Table 3 Summary of the operation area VAS follow-up results

From: Closed drainage versus non-drainage for single-level lumbar discectomy: a prospective randomized controlled study

  Closed drainage group Non-drainage group p
Preoperative 2.2 ± 0.8 2.0 ± 0.8 0.143
Day 1 5.1 ± 0.8 6.0 ± 0.7 0.000
Week 1 3.9 ± 0.8 4.0 ± 0.8 0.105
Week 2 2.9 ± 0.9 3.1 ± 0.7 0.127
Month 1 1.3 ± 0.6 1.4 ± 0.7 0.139
Last follow-up 0.8 ± 0.6 0.9 ± 0.6 0.215
  1. Data are presented as mean ± standard deviation
  2. Abbreviation: VAS visual analog scale