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Table 2 Comparison of clinical and laboratory outcomes

From: Elastic pneumatic tourniquet cuff can reduce postoperative thigh pain after total knee arthroplasty: a prospective randomized trial

  Preoperative Postoperative Day 1 Postoperative Day 2 Postoperative Day 4 Postoperative Day 7
CPK (mcg/L)
 Group E N/A 140 ± 11 156 ± 35 97 ± 14 66 ± 6
 Group C N/A 105 ± 22 140 ± 17 81 ± 8 62 ± 5
P-value N/A n.s n.s n.s n.s
LDH (IU/L)
 Group E N/A 202 ± 57 211 ± 62 247 ± 58 277 ± 58
 Group C N/A 200 ± 40 208 ± 49 244 ± 55 271 ± 81
P-value N/A n.s n.s n.s n.s
Hemoglobin (g/dL)
 Group E 11.9 ± 1.7 10.1 ± 1.5 9.5 ± 1.2 9.6 ± 1.1 9.7 ± 1.0
 Group C 11.8 ± 1.8 9.9 ± 1.4 9.4 ± 1.2 9.4 ± 1.3 9.5 ± 1.0
P-value n.s n.s n.s n.s n.s
Hematocrit (%)
 Group E 36.6 ± 5.1 30.8 ± 4.4 29.1 ± 3.5 29.7 ± 3.5 30.1 ± 3.0
 Group C 35.3 ± 5.9 30.1 ± 4.0 28.7 ± 3.7 28.9 ± 3.9 29.2 ± 3.1
P-value n.s n.s n.s n.s n.s
Rescue analgesic user (%)
 Group E N/A 41.7 66.7 58.3 33.3
 Group C N/A 39.6 66.7 60.4 16.7
P-value N/A n.s n.s n.s n.s
  1. The data are expressed as the mean ± standard deviations
  2. Group E elastic cuff group, Group C conventional cuff group, CPK creatine phosphokinase, LDH lactate dehydrogenase, n.s not significant, N/A not applicable