Efficacy of a Combined Intramedullary, Periarticular Injection, and Intraarticular Tranexamic Acid Application on Postoperative Bleeding in Total Knee Arthroplasty: A Retrospective Case-Matched Study

Table 1

Demographic data.

Characteristic	Group 1 (control)	Group 2 (TXA group)	value
	N = 56	N = 55
Sex (male : female)	6 : 50	8 : 47	0.543
Age (years)	68.3 ± 6.4	69.1 ± 7.7	0.568
Side (left : right)	22 : 34	30 : 25	0.107
Weight (kg)	65.3 ± 10.8	66.4 ± 9.8	0.565
Height (cm)	153 ± 6.1	154.4 ± 7.1	0.266
BMI (kg/m^2)	27.9 ± 4	27.8 ± 3.6	0.973
ASA classification (II : III)	47 : 9	38 : 17	0.065
Preop hemoglobin (g/dL)	13.3 ± 0.7	13 ± 1.4	0.155
Preop hematocrit (%)	40.1 ± 2.7	39.2 ± 4.4	0.203
Platelet count (×10^3/μL)	261 ± 52.5	273.5 ± 49.9	0.203

Values are expressed as mean ± SD.