Comparison of the Effect of Different Local Analgesia Administration Techniques in Total Hip Arthroplasty: A Retrospective Comparative Cohort Study
Table 4
Comparison of preoperative laboratory data among the three groups.
Laboratory data
Preoperative
Control group
PAI group
IAI group
value
95% confidence interval
(N = 113)
(N = 87)
(N = 81)
WBC (/μL)
6019.4 ± 1653.6
5851.7 ± 1299.5
5639.5 ± 1308.7
C versus P: 0.9420
−500.0–400.0
C versus I: 0.4403
−800.0–300.0
P versus I: 0.7511
−700.0–300.0
AST (U/L)
23.3 ± 14.2
22.3 ± 12.2
23.2 ± 11.9
C versus P: 0.1170
−3.0–0
C versus I: 0.5168
−3.0–1.0
P versus I: 0.6517
−1.0–2.0
ALT (U/L)
20.5 ± 15.5
19.7 ± 13.5
21.8 ± 19.6
C versus P: 0.5483
−3.0–1.0
C versus I: 0.8612
−3.0–2.0
P versus I: 0.9028
−2.0–3.0
CK (U/L)
102.6 ± 56.4
96.1 ± 92.2
107.3 ± 118.9
C versus P: 0.1407
−22.0–3.0
C versus I: 0.8648
−17.0–10.0
P versus I: 0.4645
−6.0–20.0
BUN (mg/dL)
17.2 ± 4.5
15.4 ± 4.6
15.6 ± 4.0
C versus P: 0.0138
−3.1–0.3
C versus I: 0.0320
−2.9–0.1
P versus I: 0.9344
−1.2–1.6
Cr (mg/dL)
0.67 ± 0.17
0.62 ± 0.14
0.64 ± 0.14
C versus P: 0.1635
−0.08–0.01
C versus I: 0.7456
−0.06–0.03
P versus I: 0.5656
−0.03–0.07
CRP (mg/dL)
0.14 ± 0.17
0.12 ± 0.15
0.14 ± 0.22
C versus P: 0.9598
−0.03–0.02
C versus I: 0.9631
−0.03–0.02
P versus I: 0.9939
−0.02–0.03
D-dimer (μg/mL)
1.2 ± 0.7
1.1 ± 0.6
1.0 ± 0.6
C versus P: 0.6273
−0.16–0.07
C versus I: 0.3123
−0.2–0.05
P versus I: 0.8705
−0.15–0.1
Values are expressed as mean ± standard deviation. PAI and P, periarticular injection; IAI and I, intra-articular injection; C, control; WBC, white blood cell count; AST, aspartate transaminase; ALT, alanine aminotransferase; CK, creatine phosphokinase; BUN, blood urea nitrogen; Cr, creatinine; CRP, C-reactive protein.
