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Journal of Experimental Orthopaedics

Table 3 Total frequencies of breakthrough pain from POD1 to POD5

From: Single shot adductor canal block combined with intravenous patient-controlled analgesia can be effective as continuous adductor canal block in reducing opioid consumption and breakthrough pain after total knee arthroplasty

Pain NRS

IV-PCA (n = 180)

C-ACB (n = 173)

PCA + sACB (n = 129)

p-value a

breakthrough

12.9%

7.9%

9.0%

*0.01

mild

87.1%

92.1%

91.0%

 
  1. †NRS Numerical rating scale, IV-PCA Intravenous patient-controlled analgesia, C-ACB Continuous adductor canal block, sACB Single-shot adductor canal block, POD Postoperative day
  2. a Pearson’s chi-squared test
  3. * Statistically significant at p < 0.05
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