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Table 3 Comparison between the studied groups as regards improvement of the motor power, postoperative sphincteric condition, patients’ satisfaction, amount of blood loss, and operation time

From: Surgical outcomes of decompression alone versus transpedicular screw fixation for upper lumbar disc herniation

  Groups p value
Group 1
N=22
Group 2
N=24
Improvement of the motor power Complete improvement N 6 5 0.662
% 75.0 71.4
Little improvement N 2 2
% 25.0 28.6
Postoperative sphincteric condition Not improved N 2 3 0.657
% 33.3 37.5
Partial improvement N 4 5
% 66.7 62.5
Patient satisfaction No N 2 3 0.543
% 9.1 12.5
Yes N 20 21
% 90.9 87.5
Amount of blood loss (ml) Mean 205.9 283.3 <0.001*
SD 51.3 35.9
Operation time (minutes) Mean 104.1 141.5 <0.001*
SD 11.2 8.7
  1. *Significant at p<0.05