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Table 3 The VAS Scores in the two groups

From: Comparison of the PEEK cage and an autologous cage made from the lumbar spinous process and laminae in posterior lumbar interbody fusion

  Preoperative Postoperative
Group A 7.23 ± 0.88 1.86 ± 0.63
Group B 7.54 ± 1.24 2.05 ± 0.61
p-value NS NS
  1. Abbreviation: NS not significant
  2. Data presented as mean ± SD. P-value was compared by Mann–Whitney U-test. Significant differences existed between pre- and postoperative VAS scores in both groups (P < 0.05); no significant difference existed between the 2 groups (p > 0.05)