Table 4 Comparison of the need for pain medication until the first postoperative day between “UKA” and “TKA” groups and the opioid equivalent. PCA = patient controlled analgesia.

From: Pain management of unicompartmental (UKA) vs. total knee arthroplasty (TKA) based on a matched pair analysis of 4144 cases

 

TKA

UKA

p-Values

Recovery unit: Coanalgetics

8%

5%

0.011

Recovery unit: Nonopioids

50%

45%

0.004

Recovery unit: Opioids

57%

55%

0.152

Recovery unit: PCA

30.5%

32.9%

0.130

Ward: Coanalgetics

3.6%

4.2%

0.038

Ward: Nonopioids

94%

96%

 < 0.001

Ward: Opioids

84%

76%

 < 0.001

Ward: PCA

33.7%

34.5%

0.067

Recovery unit: Opioid equivalent (mg) (median, IQR 25%/75%)

0.0, 0.0/6.8

0.0, 0.0/7.5

0.35

Ward: Opioid equivalent (mg) (median, IQR 25%/75%)

15.0, 0.0/26.0

15.0, 0.0/30.0

0.27