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Table 2 Postoperative data

From: Efficacy of tranexamic acid in reducing blood loss in posterior lumbar spine surgery for degenerative spinal stenosis with instability: a retrospective case control study

  tranexamic acid group SD control group SD p value
Number of patients 46   51   
Hemoglobin (g/dl)      
pre operation 14.91 1.1 14.51 1.28 0.103
post operation 1 day 11.08 1.68 10.29 1.39 0.013
mean drop 3.83 0.89 4.21 0.9 0.039
Platelet concentration (tsd/μl)      
pre operation 256.75 63.18 268.92 75.71 0.395
post operation 1 day 198.17 57.95 220.71 62.26 0.069
Drainage (ml)      
intra operation 470 153.06 560 67.59 0.0002
post operation 6 h 171.25 141.01 258.75 139.8 0.002
post operation 12 h 101.25 72.7 110 131.6 0.69
postop total 24 h 270 180 368.75 211.4 0.016
intraoperative infusions (crystalloids in ml) 2.554.55 737.26 2.433.33 782.07 0.435