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

Table 2 Postoperative data

	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

ISSN: 1471-2482