Research Article

Comparison of the Effect of Different Local Analgesia Administration Techniques in Total Hip Arthroplasty: A Retrospective Comparative Cohort Study

Figure 1

Comparison of NRS scores among the three groups (a) and within each group (b). Significant differences between the control and PAI groups are marked as . Significant differences between the control and IAI groups are marked as . Significant differences between the PAI and IAI groups are marked as §. Significant differences in perioperative data within the control group are marked as . Significant differences in perioperative data within the PAI group are marked as . Significant differences in perioperative data within the IAI group are marked as ||. PAI, periarticular injection; IAI, intra-articular injection; NRS, numeric rating scale.
(a)
(b)