The efficacy of topical tranexamic acid in total hip arthroplasty: a meta-analysis.

Shubiao Chen,Zhihua Deng,Kezhou Wu,Gengbin Kong,Hu Wang,Weili Feng

doi:10.1186/s12891-016-0923-0

Abstract

sBackgroundTopical tranexamic acid (TXA) has been shown to be effective in reducing blood loss and the need for transfusion after total knee arthroplasty. However, the effectiveness of topical TXA use in total hip arthroplasty (THA) still remains unclear. The purpose of this meta-analysis is to examine the safety and efficacy of topical use of TXA following THA.Hypothesis: Topical TXA reduces blood loss and transfusion rates without increasing risk of deep vein thrombosis in patients with THA.MethodsAn electronic literature search of PubMed, Embase, the Cochrane Library, Web of Science and Chinese Biomedical Database was performed, to identify studies published before February 2015. All randomized controlled trials and cohort studies evaluating the efficacy of topical TXA during THA were included. Two independent authors identified the eligible studies, assessed their methodological quality, and extracted data. The data were using fixed-effects or random-effects models with (standard) mean differences and risk ratios for continuous and dichotomous variables, respectively. Data were analysed using RevMan 5.3 software.ResultsFourteen studies encompassing 2594 patients met the inclusion criteria for our meta-analysis. Our meta-analysis indicated that when compared with the placebo group, topical use of TXA significantly reduced total blood loss (MD = −297.65 ml, 95 % CI −371.68 ml, 116.08 ml; P < 0.01), drainage loss (MD = −164.68 ml, 95 % CI −236.63 ml, −92.73 ml; P < 0.01), transfusion rate (RR = 0.26, 95 % CI 0.17, 0.40; P < 0.01) and with less of a drop in haemoglobin level (SMD = −0.66, 95 % CI −0.91, −0.41; P < 0.01) after primary THA. No significant difference in length of hospital stay (MD = −0.40, 95 % CI −0.91, 0.11; P = 0.14), deep vein thrombosis (RR = 1.19, 95 % CI 0.40, 3.57; P = 0.16) and pulmonary embolism (RR = 1.11, 95 % CI 0.11, 10.81; P = 0.21) among the study groups.ConclusionsTopical TXA could significantly reduce total blood loss, drainage loss, transfusion rates and decrease haemoglobin level following THA, without increasing risk of venous thromboembolisms.

Highlights

Topical tranexamic acid (TXA) has been shown to be effective in reducing blood loss and the need for transfusion after total knee arthroplasty
Our meta-analysis indicated that when compared with the placebo group, topical use of TXA significantly reduced total blood loss (MD = −297.65 ml, 95 % CI −371.68 ml, 116.08 ml; P < 0.01), drainage loss (MD = −164.68 ml, 95 % CI −236.63 ml, −92.73 ml; P < 0.01), transfusion rate (RR = 0.26, 95 % CI 0.17, 0.40; P < 0.01) and with less of a drop in haemoglobin level (SMD = −0.66, 95 % CI −0.91, −0.41; P < 0.01) after primary total hip arthroplasty (THA)
The analysis showed there was no significant difference in length of hospital stay between topical TXA and placebo group (MD = −0.40, 95 % CI −0.91, 0.11; P = 0.006) in the presence of statistical heterogeneity (I2 = 83 %)

Summary

Introduction

Topical tranexamic acid (TXA) has been shown to be effective in reducing blood loss and the need for transfusion after total knee arthroplasty. The effectiveness of topical TXA use in total hip arthroplasty (THA) still remains unclear. The purpose of this meta-analysis is to examine the safety and efficacy of topical use of TXA following THA. Hypothesis: Topical TXA reduces blood loss and transfusion rates without increasing risk of deep vein thrombosis in patients with THA. THA is associated with substantial blood loss, ranging from 1188 to 1651 ml [3] and the transfusion rate is 16 to 37 %, which often resulting in postoperative blood transfusions subsequently [4, 5].

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