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The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 4 Comparison between the 2 study groups regarding the preoperative and the postoperative VAS-S values

From: Minimally invasive surgical management of symptomatic lumbar disc herniation: can the endoscope replace the microscope?

 

MD

ED

p*

Mean

 ± SD

Mean

 ± SD

Pre VAS-S

9.75

0.44

8.58

0.93

0.0001

VAS-S 1 month Post

2.15

0.37

1.2

1.61

0.014

VAS-S 6 months Post

1.25

0.55

1.55

1.39

0.357

VAS-S 12 months Post

0.35

0.49

1.8

1.36

0.001

  1. MD microscopic discectomy, ED endoscopic discectomy, Pre preoperatively, VAS-S Visual analogue scale for sciatic pain, Post postoperatively, SD standard deviation
  2. *Student t test
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