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Table 3 Comparison of laboratory data between the PAI and control groups

From: Periarticular analgesic injection containing a corticosteroid after total hip arthroplasty may prevent deep venous thrombosis: a retrospective comparative cohort study

Laboratory data Preoperative POD 1 POD 7
Control group PAI group p value Control group PAI group p value Control group PAI group p value
(N = 113) (N = 87)   (N = 113) (N = 87)   (N = 113) (N = 87)  
WBC (/µl) 6019.4 ± 1653.6 5851.7 ± 1299.5 0.7421 8072.6 ± 1654.2 11470.1 ± 2409.0 < 0.0001 5491.2 ± 1274.9 6464.4 ± 1726.4 < 0.0001
AST (U/l) 23.3 ± 14.2 22.3 ± 12.2 0.0477 26.5 ± 11.9 22.0 ± 7.6 < 0.0001 25.4 ± 11.8 21 ± 12.8 < 0.0001
ALT (U/l) 20.5 ± 15.5 19.7 ± 13.5 0.2959 17.1 ± 8.5 16.7 ± 11.8 0.0653 30.5 ± 21.8 26.4 ± 23.3 0.0766
CK (U/l) 102.6 ± 56.4 96.1 ± 92.2 0.0584 457.8 ± 289.2 301.1 ± 136.7 < 0.0001 101.2 ± 59.0 66.0 ± 36.8 < 0.0001
BUN (mg/dl) 17.2 ± 4.5 15.4 ± 4.6 0.005 10.0 ± 3.6 12.0 ± 3.5 < 0.0001 14.9 ± 4.0 16.3 ± 4.4 0.0091
Cr (mg/dl) 0.67 ± 0.17 0.62 ± 0.14 0.069 0.59 ± 0.17 0.55 ± 0.12 0.0742 0.65 ± 0.16 0.61 ± 0.16 0.0281
CRP (mg/dl) 0.14 ± 0.17 0.12 ± 0.15 0.7851 5.0 ± 2.1 3.0 ± 1.5 < 0.0001 2.2 ± 1.7 0.6 ± 1.1 < 0.0001
D-dimer (µg/ml) (【(µg/mL) 1.2 ± 0.7 1.1 ± 0.6 0.3573 3.5 ± 7.2 3.4 ± 2.6 0.5273 6.3 ± 2.1 3.9 ± 1.8 < 0.0001
  1. Values are expressed as the mean ± standard deviation. PAI periarticular analgesic injection, POD postoperative day, WBC white blood cell count, AST aspartate transaminase, ALT alanine aminotransferase, CK creatine phosphokinase, BUN blood urea nitrogen, Cr creatinine, CRP C-reactive protein