Comparison of the clinical outcomes of Scarf and Chevron Osteotomy for Hallux Valgus Deformity: a meta-analysis of randomized controlled trial

Abstract

Background Scarf and Chevron Osteotomy have been widely used for Hallux Valgus Deformity (HVD) to correcting hallux valgus angle (HVA) and intermetatarsal 1-2 angle (IMA), but there still have controversy which approach is the best way to repair HVD,this study aims to use meta-analysis to evaluate the clinical outcomes of Scarf and Chevron Osteotomy for Hallux Valgus Deformity.Methods Pubmed, Embase, Medline and Cochrane library databases were searched for relevant studies published before September 1, 2019. Studies clearly reporting a comparison of Scarf and Chevron Osteotomy for Hallux Valgus Deformity were selected. The Post-operative hallux valgus angle (HVA) and intermetatarsal 1-2 angle (IMA) were evaluated and also the correction of HVA and IMA. The weighted mean differences and relative risks were calculated using a fixed-effects or random-effects model.Results Five studies were included in this meta-analysis,one were prospective randomized controlled trials and three were randomized control trials.A total of 434 patients (210 Scarf and 224 Chevron) were enrolled in the studies.Compare Scarf Osteotomy,Chevron Osteotomy can significantly decreaseed Post-operative hallux valgus angle (HVA)[MD = 1.92 95% CI (1.21 to 2.63),P < 0.0001],but there have no significantly difference between Scarf and Chevron Osteotomy groups in terms of Postoperative intermetatarsal angle (IMA),the correction of IMA and HVA(C-

A retrospective investigation of the effect of tranexamic acid application and tourniquet duration on postoperative bleeding amount in patients undergoing total knee arthroplasty

“…In the literature, it has been reported that the average amount of bleeding in total knee arthroplasty operations is between 800-1800 ml [4,5]. Blood transfusion applied due to bleeding prolongs both the reha-bilitation period and the length of hospital stay [6]. It also causes severe complications such as transfusion reaction, infection, metabolite imbalances, hemolysis, and immune system inhibition [7][8][9].…”

“…Tranexamic acid can be administered in a number of different ways (oral, intravenous, intra-articular). Although there are studies showing that each method is effective in reducing bleeding, which method and which dose are most effective in patients with total knee arthroplasty remain controversial [1,6].…”