Comparison of perioperative data within each group and between the two groups. The gray zone shows the reference range for each laboratory value.Significant differences in perioperative data in the control group are marked as *P<0.05, **P<0.01, and ***P<0.001. Significant differences in perioperative data in the PAI group are marked as †P<0.05, ††P<0.01, and †††P<0.001. Significant differences between the two groups are marked as §P<0.05, §§P<0.01, and §§§P<0.001. PAI: periarticular analgesic injection, WBC: white blood cell count, AST: aspartate transaminase, ALT: alanine aminotransferase, CK: creatine phosphokinase, BUN: blood urea nitrogen, Cr: creatinine, CRP: C-reactive protein, NRS: numeric rating scale.