Meta-analysis comparing autologous blood-derived products (including platelet-rich plasma) injection versus placebo in patients with achilles tendinopathy
Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association. 2018;34((6):):1966-1975 e5
PURPOSE To compare the effectiveness of autologous blood-derived products (ABP) injection with that of placebo (sham injection, no injection, or physiotherapy alone) in patients with Achilles tendinopathy. METHODS Electronic databases, including PubMed, Scopus, EMBASE, and Cochrane Library were searched up to June 2017. All published or unpublished randomized controlled trials (RCTs) were included. Two independent raters assessed the risk of bias of RCTs with the Cochrane Risk of Bias Tool. The primary outcome was Victorian Institute of Sports Assessment-Achilles (VISA-A) score. Weighted mean differences (WMDs) were used for random effect meta-analysis. RESULTS Seven RCTs were enrolled in meta-analysis. The ABP injection and placebo revealed equal effectiveness in VISA-A score improvement at 4 to 6 weeks (short term, WMD 2.29, 95% confidence interval [CI]: -1.69, 6.27), 12 weeks (medium term, WMD 2.63, 95% CI: -1.72, 6.98), 24 weeks (long term, WMD 4.61, 95% CI: -1.25, 10.47), and 48 weeks (very long term, WMD 4.16, 95% CI: -6.82, 15.14). In meta-regression, there was no association between change in VISA-A score and duration of symptoms at 4 to 6 weeks (short term), 12 weeks (medium term), and 24 weeks (long term). CONCLUSIONS This meta-analysis revealed that ABP injection was not more effective than placebo (sham injection, no injection, or physiotherapy alone) in Achilles tendinopathy and that no association was found between therapeutic effects and duration of symptoms. LEVEL OF EVIDENCE Level I, meta-analysis of Level I studies.
Review: Autologous blood transfusion drainage compared with no drainage in total knee arthroplasty: a meta-analysis and systematic review
Pakistan Journal of Pharmaceutical Sciences.. 2017;30((6)):2321-2327.
This is the first meta-analysis to assess the clinical efficiency, safety and potential advantages regarding the use of ABT drains compared with no drainage which is controversial in total knee arthroplasty (TKA).A comprehensive literature search was carried out in March 2015 using the PubMed, Embase, and Cochrane Library databases. A metaanalysis was carried out on two retrospective comparative studies (RCSs) and five randomized controlled trials (RCTs). The number of patients receiving homologous blood transfusion was the primary outcome of the meta-analysis; the secondary outcome measure was the mean drop in Hb level in comparison to the mean pre-operative HB level, the range of flexion of the knee joint, and infections of the wound after surgery. A total of 868 patients, who were included in two retrospective studies and five RCTs, were distributed into subgroups for the meta-analysis. This pooled data showed no benefit of ABT drainage compared no drainage in the homologous blood transfusion rate (13.05% and 16.91%, OR:0.73[0.47,1.13], Z=1.41, P=0.016; and 3.49% and 6.54%, OR: 0.50[0.12,2.01], Z=0.98,P=0.033,respectively in subgroups), Hb drop (Weight mean differences (WMD): 0.20[-0.28,0.68], Z=0.82, P=0.41; WMD:0.16[-0.41,0.55], Z=0.93, P=0.35, respectively), range of flexion of the knee joint (WMD:-0.82 [-3.35,1.70], Z =0.64,P=0.52)and wound infection (OR:0.25[0.61,10.20]; Z =1.28, p=0.2) after TKA surgery. Our findings do not recommend the routine use of postoperative ABT drainage in total knee arthroplasty. Well-designed RCTs with large sample sizes, longer term measures and extensive follow-up period should be performed in the future to update the findings of this study.
Postoperative autotransfusion drain after total hip arthroplasty: a meta-analysis of randomized controlled trials
Scientific Reports. 2016;6:27461.
The use of a postoperative autotransfusion drain (PATD) to reduce allogenic blood transfusions in total hip arthroplasty (THA) remains controversial. Therefore, we conducted a meta-analysis to evaluate the efficacy and safety of this technique. Randomized controlled trials (RCTs) were identified from PubMed, Embase, and the Cochrane Central Register of Controlled Trials (CENTRAL). Thirteen RCTs (1,424 participants) were included in our meta-analysis. The results showed that PATD reduced the rate of allogenic transfusions (RR = 0.56; 95% CI [0.40, 0.77]) and total blood loss (MD = -196.04; 95% CI [-311.01, -81.07]). Haemoglobin (Hb) levels were higher in the PATD group on postoperative day 1 (MD = 0.28; 95% CI [0.06, 0.49]), but no significant differences on postoperative days 2 or 3 (MD = 0.29; 95% CI [-0.02, 0.60]; MD = 0.26; 95% CI [-0.04, 0.56]; respectively). There were no differences in length of hospital stay (MD = -0.18; 95% CI [-0.61, 0.25]), febrile reaction (RR = 1.26; 95% CI [0.95, 1.67]), infection (RR = 0.95; 95% CI [0.54, 1.65]), wound problems (RR = 1.07; 95% CI [0.87, 1.33]), or serious adverse events (RR = 0.59; 95% CI [0.10, 3.58]). Our findings suggest that PATD is effective in reducing the rate of allogenic transfusion. However, the included studies are inadequately powered to conclusively determine the safety of this technique.
The efficacy and safety of postoperative retransfusion drain following total hip arthroplasty: a meta-analysis
Zhonghua Wai Ke Za Zhi [Chinese Journal of Surgery]. 2016;54((2)):108-13.
OBJECTIVE To investigate the effectiveness and safety of post-operative retransfusion drain(PRD) after total hip arthroplasty. METHODS A systematic literature review based on PubMed, EMBase, the Cochrane Library, China Biology Medicine disc, CNKI, VIP and WanFang Database in any language regarding PRD following total hip arthroplasty was performed.The data was evaluated using modified Jadad score and then analyzed using RevMan 5.2. RESULTS Nine randomized controlled trials totaling 1 824 patients, 913 patients in PRD group and 911 in control group, were eligible for data extraction and Meta-analysis.The results indicated that the use of PRD could reduce the requirement of allogeneic blood transfusion when compared with ordinary vacuum drainage (RR=0.61, 95% CI= 0.47-0.79), but the benefit was not found when compared with no drainage group(RR=1.07, 95% CI=0.67-1.71). And the postoperative hemoglobin level was higher in PRD group(MD=0.14, 95% CI=0.01-0.27, P=0.04). No significant difference was identified regarding transfusion index, length of hospital stay, the incidence of febrile reaction and wound-related complications. CONCLUSIONS PRD in reducing requirement of blood transfusion following THA is effective and safe when compared with ordinary vacuum drainage, but the benefit is not found when compared with no drainage.And more robust evidence is needed to confirm this result.
Comparison between autologous blood transfusion drainage and closed-suction drainage/no drainage in total knee arthroplasty: a meta-analysis
Bmc Musculoskeletal Disorders. 2016;17((1)):142.
BACKGROUND Autologous blood transfusion (ABT) drainage system is a new unwashed salvaged blood retransfusion system for total knee replacement (TKA). However, whether to use ABT drainage, closed-suction (CS) drainage or no drainage in TKA surgery remains controversial. This is the first meta-analysis to assess the clinical efficiency, safety and potential advantages regarding the use of ABT drains compared with closed-suction/no drainage. METHODS PubMed, Embase, and the Cochrane Library were comprehensively searched in March 2015. Fifteen randomized controlled trials (RCTs) were identified and pooled for statistical analysis. The primary outcome evaluated was homologous blood transfusion rate. The secondary outcomes were post-operative haemoglobin on days 3-5, length of hospital stay and wound infections after TKA surgery. RESULTS The pooled data included 1,721 patients and showed that patients in the ABT drainage group might benefit from lower blood transfusion rates (16.59 % and 37.47 %, OR: 0.28 [0.14, 0.55]; 13.05 % and 16.91 %, OR: 0.73 [0.47,1.13], respectively). Autologous blood transfusion drainage and closed-suction drainage/no drainage have similar clinical efficacy and safety with regard to post-operative haemoglobin on days 3-5, length of hospital stay and wound infections. CONCLUSIONS Autologous blood transfusion drainage offers a safe and efficient alternative to CS/no drainage with a lower blood transfusion rate. Future large-volume high-quality RCTs with extensive follow-up will affirm and update this system review.
The efficacy and safety of autologous blood transfusion drainage in patients undergoing total knee arthroplasty: a meta-analysis of 16 randomized controlled trials
Bmc Musculoskeletal Disorders. 2016;17((1)):452.
BACKGROUND Autologous blood transfusion drainage (ABTD) has been used for many years to reduce blood loss in total knee arthroplasty (TKA). We evaluate the current evidence concerning the efficiency and safety of ABTD used in TKA compared with conventional suction drainage (CSD). METHODS We performed a systematic literature search of the PubMed, Embase, Cochrane Library and four Chinese databases. All randomized controlled trials (RCTs) that compared the effects of ABTD versus CSD in TKA were included in the meta-analysis. RESULTS Sixteen RCTs involving 1534 patients who compared the effects of ABTD versus CSD were included. Five of the RCTs were performed in Asia, ten in Europe, and one in North America. Patients in the ABTD group had a lower blood transfusion rate (OR: 0.25 [0.13, 0.47]; Z = 4.27, P < 0.0001) and fewer units transfused per patient (WMD: -0.68 [-0.98, -0.39]; Z = 4. 52, P < 0.00001) than did patients in the CSD group. Wound complications, deep vein thrombosis, febrile complications, post-operative hemoglobin days 5-8, drainage volume, and length of hospital stay did not differ significantly between the two types of drainage systems. CONCLUSION This meta-analysis suggests that ABTD is a safe and effective method that yields a lower blood transfusion rate and fewer units transfused per patient in TKA compared with CSD.
Do autologous blood transfusion systems reduce allogeneic blood transfusion in total knee arthroplasty?
Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the Esska. 2016;25((9):):2957-2966
PURPOSE To study whether autologus blood transfusion systems reduce the requirement of allogneic blood transfusion in patients undergoing total knee arthroplasty. METHODS A comprehensive search of the published literature with PubMed, Scopus and Science direct database was performed. The following search terms were used: (total knee replacement) OR (total knee arthroplasty) OR (TKA) AND (blood transfusion) OR (autologous transfusion) OR (autologous transfusion system). Using search syntax, a total of 748 search results were obtained (79 from PubMed, 586 from Science direct and 83 from Scopus). Twenty-one randomized control trials were included for this meta-analysis. RESULTS The allogenic transfusion rate in autologus blood transfusion (study) group was significantly lower than the control group (28.4 and 53.5 %, respectively) (p value 0.0001, Relative risk: 0.5). The median units of allogenic blood transfused in study control group and control group were 0.1 (0.1-3.0) and 1.3 (0.3-2.6), respectively. The median hospital stay in study group was 9 (6.7-15.6) days and control group was 8.7 (6.6-16.7) days. The median cost incurred for blood transfusion per patient in study and control groups was 175 (85.7-260) and 254.7 (235-300) euros, respectively. CONCLUSION This meta-analysis demonstrates that the use of auto-transfusion systems is a cost-effective method to reduce the need for and quantity of allogenic transfusion in elective total knee arthroplasty. LEVEL OF EVIDENCE Level I.
Is postoperative cell salvage necessary in total hip or knee replacement? A meta-analysis of randomized controlled trials
International Journal Of Surgery. 2015;21:135-44.
OBJECTIVE The purpose of this study was to determine whether there are hematological or clinical differences with the use of postoperative cell salvage after total knee (TKR) and hip replacement (THR). METHODS A systematic literature review based on PubMed, EMBASE, the Cochrane Library Database in any language regarding postoperative cell salvage following TKR or THR was performed. High quality of randomized controlled trials were identified. The data was analyzed using Rev Man 5.2. RESULTS 19 randomized controlled trials (12 in TKR, 4 in THR and 3 in both) about 3482 patients were identified and included in this meta-analysis. Postoperative cell salvage significantly reduced the allogeneic blood transfusion requirement after TKR (RR = 0.46, 95% CI = 0.30 to 0.72) and THR (RR = 0.46, 95%CI = 0.32 to 0.68). It also demonstrated a higher level of postoperative Hemoglobin (MD = 0.26 g/dL, 95%CI = 0.15 to 0.37) with the use of postoperative cell salvage. No significant differences were detected regarding length of hospital stay, the incidence of febrile reaction, wound infection and deep vein thrombosis. CONCLUSION The results strengthen the fact that postoperative cell salvage is effective and safe to reduce the rate of transfusion after TKR and THR. As the relatively poor methodological quality and heterogeneity, further research is needed to confirm its safety and cost-effectiveness.Copyright © 2015 IJS Publishing Group Limited. Published by Elsevier Ltd. All rights reserved.
The merits of cell salvage in arthroplasty surgery: an overview
Canadian Journal of Surgery. 2014;57((1):):61-6.
Arthroplasty entails considerable exposure to allogenic blood transfusion. Cell salvage with washing is a contemporary strategy that is not universally used despite considerable potential benefits. We searched Embase and Medline to determine if blood salvage with washing during primary and/or revision hip and knee arthroplasty results in lower rates of transfusion and postoperative complications. We included 10 studies in our analysis, which we rated according to Downs and Black criteria. With primary knee arthroplasty, there was a reduction in transfusion rate from 22% to 76% and a 48% reduction in transfusion volume (n = 887). With primary hip arthroplasty, there was a reduction from 69% to 73% in transfusion rate and a 31% reduction in transfusion volume (n = 239). There was a significant decrease in length of hospital stay (9.6 v. 13.6 d). Studies of revision arthroplasty reported a 31%-59% reduction in transfusion volume (n = 241). The available evidence demonstrates reduced exposure to allogenic blood with the use of salvage systems. Studies have been underpowered to detect differences in infection rates and other postoperative complications. Future cost analysis is warranted.
Comparison between autologous blood transfusion drainage and no drainage/closed-suction drainage in primary total hip arthroplasty: a meta-analysis
Archives of Orthopaedic & Trauma Surgery. 2014;134((11):):1623-31.
PURPOSE Primary aim of this meta-analysis of randomized controlled trials (RCTs) was to compare blood loss, transfusion rate and postoperative hemoglobin levels at 24-48 h after primary total hip arthroplasty (THA) between autologous blood transfusion (ABT) drainage and no drainage/closed-suction drainage and to obtain a powerful conclusion which way of drainage had the best clinical efficacy. Secondary aim was to compare the postoperative complication rates during the first year to indentify which way of drainage was safest. METHODS We searched the PubMed, Embase and Cochrane Central Register of Controlled Trials and identified 12 RCTs (including a total of 1,574 patients) for the meta-analysis. Methodological quality was assessed by the Physiotherapy Evidence Database scale. Two researchers extracted relevant data including study characteristics, blood loss, transfusion rate, hemoglobin levels, hospital stay and complications. After data extraction, we compared results using fixed-effects or random-effects models depending on the heterogeneity of the included studies. RESULTS Autologous blood transfusion drainage had less total blood loss and lower superficial infection rate than no drainage/closed-suction drainage. While there were no statistical differences in postoperative pain, hematoma, hemoglobin levels, hospital stay and other complications between ABT drainage and no drainage/closed-suction drainage. CONCLUSIONS Autologous blood transfusion drainage and no drainage/closed-suction drainage have similar clinical efficacy and safety in primary THA with regard to clinical outcomes and complication rates.