INTRODUCTION: Local infiltration analgesia (LIA) is a popular method for decreasing post-operative pain after total knee arthroplasty (TKA). The goal of this meta-analysis is to compare the effect of LIA with placebo on the intensity of post-operative pain and the consumption of opioids. METHODS: A search was performed in the PubMed/MEDLINE, Cochrane, EMBASE and TRIP databases. All (quasi)-randomized controlled trials (RCTs) were included. LIA consists of intra-operative infiltration with at least one analgesic component. Data were pooled using Cochrane software. RESULTS: Seven placebo-controlled RCTs were included, involving 405 TKAs. On the first post-operative day, LIA provides an average decrease in VAS scores at rest of 12.3 % compared to placebo. Six RCTs studied opioid consumption in patients following TKA. There was a decrease in opioid consumption of 14.8 % compared to placebo 24 h after surgery. This suggests a reduced pain perception due to LIA. On the second post-operative day, the effect on both outcome measures was diminished and no longer significant. Heterogeneity between the studies was 71 % for pain and 39 % for opioid consumption (p = 0.002 and p = 0.0005). No major complications were reported with the use of LIA. CONCLUSION: LIA might be able to decrease pain and the use of opioids on the first post-operative day following TKA. However, due to the high level of heterogeneity between the studies, no firm conclusions can be drawn. LEVEL OF EVIDENCE: Meta-analysis, Level II.
INTRODUCTION: Local infiltration analgesia (LIA) is a popular method for decreasing post-operative pain after total knee arthroplasty (TKA). The goal of this meta-analysis is to compare the effect of LIA with placebo on the intensity of post-operative pain and the consumption of opioids. METHODS: A search was performed in the PubMed/MEDLINE, Cochrane, EMBASE and TRIP databases. All (quasi)-randomized controlled trials (RCTs) were included. LIA consists of intra-operative infiltration with at least one analgesic component. Data were pooled using Cochrane software. RESULTS: Seven placebo-controlled RCTs were included, involving 405 TKAs. On the first post-operative day, LIA provides an average decrease in VAS scores at rest of 12.3 % compared to placebo. Six RCTs studied opioid consumption in patients following TKA. There was a decrease in opioid consumption of 14.8 % compared to placebo 24 h after surgery. This suggests a reduced pain perception due to LIA. On the second post-operative day, the effect on both outcome measures was diminished and no longer significant. Heterogeneity between the studies was 71 % for pain and 39 % for opioid consumption (p = 0.002 and p = 0.0005). No major complications were reported with the use of LIA. CONCLUSION: LIA might be able to decrease pain and the use of opioids on the first post-operative day following TKA. However, due to the high level of heterogeneity between the studies, no firm conclusions can be drawn. LEVEL OF EVIDENCE: Meta-analysis, Level II.
Authors: Pedro Hinarejos; Bruno Capurro; Xavier Santiveri; Pere Ortiz; Joan Leal; Xavier Pelfort; Raul Torres-Claramunt; Juan Sánchez-Soler; Joan C Monllau Journal: Knee Surg Sports Traumatol Arthrosc Date: 2016-06-14 Impact factor: 4.342
Authors: M T Berninger; J Friederichs; W Leidinger; P Augat; V Bühren; C Fulghum; W Reng Journal: BMC Musculoskelet Disord Date: 2018-07-18 Impact factor: 2.362
Authors: Bas L Fransen; Marco J M Hoozemans; Kirsten D S Argelo; Lucien C M Keijser; Bart J Burger Journal: Arch Orthop Trauma Surg Date: 2018-07-19 Impact factor: 3.067