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Review
. 2018 Mar;97(13):e0171.
doi: 10.1097/MD.0000000000010171.

Effectiveness of liposome bupivacaine for postoperative pain control in total knee arthroplasty: A PRISMA-compliant meta-analysis of randomized controlled trials

Zhan-Xia Yu  1 , Zhao-Zhi Yang, Lu-Lan Yao
Affiliations
Review

Effectiveness of liposome bupivacaine for postoperative pain control in total knee arthroplasty: A PRISMA-compliant meta-analysis of randomized controlled trials

Zhan-Xia Yu et al. Medicine (Baltimore). 2018 Mar.

Abstract

Background: Adequate pain control after total knee arthroplasty (TKA) enables quicker recovery and reduces readmissions and treatment costs. The aim of this study was to determine the effect of liposomal bupivacaine (LB) for postoperative pain control in patients prepared for TKA.

Methods: We searched for the reports that evaluating the effect of liposomal bupivacaine for postoperative pain control in patients prepared for TKA between March 1983 and May 2017 in the electronic database Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, EMBASE, Web of Science, and Ovid. The main outcomes were visual analog scale (VAS) at 24, 48, and 72 hours. The secondary outcomes were total morphine consumption, the length of hospital stay, range of motion, and the occurrence of nausea.

Results: Seven randomized controlled trials (RCTs) enrolling 825 patients, with 413 in the LB group and 412 in the control group, were included in this meta-analysis. Our results suggested that administration LB was associated with a reduction of VAS by 4.22 points at 72 hours after TKA (WMD = -4.22, 95% CI -7.47, -0.97, P = .011) on a 100-point VAS. What's more, LB can decrease the occurrence of nausea when compared with traditional bupivacaine by 18.3% (risk ratio = 0.70, 95% confidence interval 0.55, 0.89, P = .003). LB was associated with an increase of the range of motion than traditional bupivacaine (P < .05). There was no significant difference between the VAS at 24, 48 hours, total morphine consumption and the length of hospital stay.

Conclusions: Administration with LB was associated with pain-relieving effects and reduces the morphine-related complications (nausea). Due the limited number of the included RCTs, large number and high quality RCTs are still need to identify the effects of LB for pain control after TKA.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
The risk of bias summary for the included studies.
Figure 2
Figure 2
Forest plots comparing the occurrence of nausea between the 2 groups.
Figure 3
Figure 3
Scatter plot of the VAS at 24 hours (A), 48 hours (B), and 72 hours (C) and the dose of LB.
See this image and copyright information in PMC

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