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01.12.2015 | Research article | Ausgabe 1/2015 Open Access

BMC Musculoskeletal Disorders 1/2015

Single administration of intra-articular bupivacaine in arthroscopic knee surgery: a systematic review and meta-analysis

Zeitschrift:
BMC Musculoskeletal Disorders > Ausgabe 1/2015
Autoren:
Qi-Bin Sun, Shi-Dong Liu, Qin-Jun Meng, Hua-Zheng Qu, Zheng Zhang
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​s12891-015-0477-6) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

QBS conceived and designed and coordinated the experiments and participated in drafting the manuscript. SDL performed the experiments. QJM participated in the acquisition of data. HZQ participated in data analysis and interpretation. ZZ participated in the criteria for authorship read and met. All authors read and approved the final manuscript.

Abstract

Background

Single administration of intra-articular (IA) bupivacaine for pain relief after arthroscopic knee surgery is effective, but its active duration and dose–response relationship is unclear. We conducted this meta-analysis to summarize all published randomized controlled trials (RCTs), thus providing the most recent information on the safety and efficacy of single-administration IA bupivacaine for pain relief after arthroscopic knee surgery, and to determine whether a dose–response relationship exists.

Methods

A systematic electronic literature search (through April 2014) was conducted to identify those RCTs that addressed the safety and efficacy of a single administration of IA bupivacaine for pain management after arthroscopic knee surgery. Subgroup analysis was conducted to determine changes in visual analog scale (VAS) scores at seven postoperative time points. Meta-regression and subgroup analyses were carried out to assess the effects of various treatment factors on efficacy and to evaluate the dose–response relationship of bupivacaine. Weighted mean differences or relative risks were calculated and pooled using a random-effects model.

Results

Twenty-eight trials involving 1,560 patients who underwent arthroscopic knee surgery met the inclusion criteria. The trials were subject to medium risk of bias. VAS scores at 2, 4, 6, 12, and 24 h postoperatively were significantly lower, the number of patients requiring supplementary analgesia was smaller, and the time to first request for analgesia was longer in the IA bupivacaine group than in the placebo group. The analgesic effect of single-administration IA bupivacaine may be associated with the effect of concomitant administration of epinephrine and concentration of bupivacaine, and no dose–response relationship was identified. No significant difference in side effects was detected between groups.

Conclusions

Current evidence shows that the use of single-administration IA bupivacaine is effective for postoperative pain management in patients undergoing arthroscopic knee surgery, with satisfactory short-term safety. Low-dose administration of IA bupivacaine 0.5% combined with epinephrine adjuvant in clinical practice should be performed. Additional high-quality RCTs with longer follow-up periods are required to examine the safety of single-administration IA bupivacaine.
Zusatzmaterial
Additional file 1: PRISMA 2009 Checklist.
12891_2015_477_MOESM1_ESM.doc
Additional file 2: 1) Study characteristics and quality assessment. 2) Association between SMD of the VAS scores and follow-up time points. 3) Secondary outcomes. 4) Effects of epinephrine use and concentration of bupivacaine on the outcomes of IA administration of bupivacaine.
12891_2015_477_MOESM2_ESM.doc
Additional file 3: Figure S1. Association between difference in VAS scores (SMD) for pain intensity and follow-up time points. Figure S2. Forest plot of meta-analysis: number of patients requiring supplementary analgesia. Figure S3. Influence of removing studies one by one on adjusted effect estimates of patients requiring supplementary analgesia. Circles are effect estimates and horizontal dotted lines are 95% confidence intervals for meta-analysis of the remaining studies; the center vertical line is the pooled effect estimate for all studies. Figure S4. Forest plot of meta-analysis: time to first request for analgesia. Figure S5. Forest plot of subgroup meta-analysis: treatment effects with/without epinephrine. Figure S6. Forest plot of subgroup meta-analysis: treatment effects with two concentrations (0.25% and 0.5%) of bupivacaine.
12891_2015_477_MOESM3_ESM.zip
Literatur
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