BackgroundThis study aims to compare the effectiveness and safety of topical versus intravenous tranexamic acid (TXA) in reducing blood loss in primary total knee arthroplasty (TKA).MethodsPubMed, Embase, the Cochrane Library, Web of Science, Chinese Biomedicine Literature (CBM), Wanfang Database and China National Knowledge Infrastructure (CNKI), and Google Scholar were searched for randomized controlled studies (RCTs) that compared topical versus intravenous TXA in terms of reducing blood loss during TKA from their inception to September 2015. This systematic review and meta-analysis was performed according to PRISMA criteria.ResultsTwelve studies reporting 12 RCTs comprising 1130 patients were included. Compared with the intravenous administration of TXA, the topical administration of TXA showed no significant differences in total blood loss (MD 2.08, 95% CI −68.43 to 72.60, P = 0.95), blood loss in drainage (MD 18.49, 95% CI −40.01 to 76.98, P = 0.54), hidden blood loss (MD 4.75, 95% CI −337.94 to 347.44, P = 0.99), need for transfusion (RR = 0.92, 95% CI 0.67~1.25, P = 0.58), hemoglobin (Hb) decline (MD −0.42, 95% CI −0.89 to 0.05, P = 0.08), and DVT occurrence (RR = 1.17, 95% CI 0.55~2.50, P = 0.68).ConclusionsCompared with intravenous administration TXA, topical administration TXA exhibits comparable effectiveness and safety in terms of reducing blood loss during TKA. Due to the poor quality of the included studies, more high-quality RCTs are needed to identify the optimal method and dose of TXA after TKA.
Background:Both anterior decompression and fusion (ADF) and laminoplasty (LAMP) are frequently used for the treatment of cervical myelopathy due to ossification of the posterior longitudinal ligament (OPLL). However, some controversies still remained in surgical options. We investigated whether ADF had better neurological outcome than LAMP in the treatment of cervical myelopathy due to OPLL. Secondary outcomes included operation time, blood loss, rate of complication and reoperation.Methods:PubMed, EMBASE and the Cochrane Register of Controlled Trials database were searched to identify potential clinical studies compared ADF with LAMP for treatment of cervical myelopathy owing to OPLL. We also manually searched the reference lists of articles and reviews for possible relevant studies. Quality assessment was performed according to Cochrane Handbook and meta-analysis was conducted using Stata 12.0 software.Results:Nine studies involving 712 patients were finally included in this analysis. Compared with LAMP, ADF was associated with an increase of the Japanese Orthopaedic Association (JOA) score (WMD = 1.86, 95% CI 0.43 to 3.29, P = .011) and recovery JOA score at final follow-up (WMD = 30.94, 95% CI 20.56 to 41.33, P = .000). And, ADF was associated with a decrease of the late neurologic deterioration than LAMP group (RR = 0.34, 95% CI 0.12 to 0.92, P = .003). However, ADF was associated with an increase of the postoperative cervical lordosis (WMD = 4.47, 95% CI 1.58 to 7.36, P = .002) than LAMP. There was no significant difference between the complication, reoperation rate (P > .05). What's more, ADF was associated with an increase of the operation time than LAMP (P < .05).Conclusions:ADF yields better neurological improvement, but higher cervical lordosis and longer operation time compared with LAMP for cervical myelopathy caused by OPLL. No significant difference was found in the complication and re-operation rate.
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