{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T10:49:56Z","timestamp":1791110996835,"version":"4.1.0"},"reference-count":23,"publisher":"Public Library of Science (PLoS)","issue":"2","license":[{"start":{"date-parts":[[2021,2,17]],"date-time":"2021-02-17T00:00:00Z","timestamp":1613520000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:sec id=\"sec001\">\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The objective of the study is to compare the radiographic and clinical results of two techniques for the treatment of hallux valgus that have the same indication, the open scarf\/Akin (SA) technique and the percutaneous Chevron\/Akin (PECA).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec002\">\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A meta-analysis was performed with the studies found during a systematic review of articles included in electronic databases until 30 May 2020. The pooled analysis was summarized according to clinical outcomes, such as visual analog pain scale (VAS) and American Orthopaedic Foot &amp; Ankle Society (AOFAS) score, radiographic outcomes and complications, with a 95% confidence interval.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec003\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Three studies comparing the open scarf\/Akin (SA) versus the PECA techniques were added to the analysis, corresponding to 235 feet, 102 in the PECA group and 133 in the SA. The final mean difference in the hallux valgus angle was 0.80 degrees and in the intermetatarsal angle 0.53, in the last radiographic evaluation. In the AOFAS score, the final mean difference was 4.97 points and in the VAS 0.14 in relation to the last clinical evaluation. Exposure to radiation during the surgical procedure was higher in the PECA group with a mean of 35.53 seconds.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec004\">\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The PECA surgical technique for the treatment of hallux valgus when compared with SA demonstrated similar radiographic correction, pain and function after six months of follow-up but with a longer radiation exposure time.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec005\">\n                    <jats:title>Register of systematic review (PROSPERO)<\/jats:title>\n                    <jats:p>CRD42018096613.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1371\/journal.pone.0242496","type":"journal-article","created":{"date-parts":[[2021,2,17]],"date-time":"2021-02-17T15:18:57Z","timestamp":1613575137000},"page":"e0242496","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":46,"title":["Percutaneous Chevron\/Akin (PECA) versus open scarf\/Akin (SA) osteotomy treatment for hallux valgus: A systematic review and meta-analysis"],"prefix":"10.1371","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8032-3077","authenticated-orcid":true,"given":"Gabriel Ferraz","family":"Ferreira","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vin\u00edcius Quadros","family":"Borges","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leonardo Vin\u00edcius de Matos","family":"Moraes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kelly Cristina","family":"St\u00e9fani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2021,2,17]]},"reference":[{"issue":"2","key":"pone.0242496.ref001","first-page":"CD000964","article-title":"Interventions for treating hallux valgus (abductovalgus) and bunions","author":"J Ferrari","year":"2000","journal-title":"Cochrane Database Syst Rev"},{"issue":"10","key":"pone.0242496.ref002","doi-asserted-by":"crossref","first-page":"1373","DOI":"10.2106\/00004623-200010000-00002","article-title":"The chevron osteotomy for correction of hallux valgus. Comparison of findings after two and five years of follow-up","volume":"82-A","author":"HJ Trnka","year":"2000","journal-title":"J Bone Jt Surg Am"},{"issue":"1","key":"pone.0242496.ref003","doi-asserted-by":"crossref","first-page":"15","DOI":"10.1016\/S1083-7515(02)00130-4","article-title":"Salvage of complications of hallux valgus surgery","volume":"8","author":"DE Lehman","year":"2003","journal-title":"Foot Ankle Clin"},{"issue":"2","key":"pone.0242496.ref004","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1016\/j.fcl.2014.02.002","article-title":"Minimally invasive osteotomies","volume":"19","author":"D Redfern","year":"2014","journal-title":"Foot Ankle Clin"},{"issue":"10","key":"pone.0242496.ref005","doi-asserted-by":"crossref","first-page":"955","DOI":"10.3113\/FAI.2009.0955","article-title":"Prospective comparative study of the scarf and ludloff osteotomies in the treatment of hallux valgus","volume":"30","author":"AH Robinson","year":"2009","journal-title":"Foot Ankle Int"},{"issue":"9","key":"pone.0242496.ref006","doi-asserted-by":"crossref","first-page":"1771","DOI":"10.1007\/s00264-013-2012-4","article-title":"Angular correction and complications of proximal first metatarsal osteotomies for hallux valgus deformity","volume":"37","author":"R Schuh","year":"2013","journal-title":"Int Orthop"},{"key":"pone.0242496.ref007","doi-asserted-by":"crossref","first-page":"149","DOI":"10.1093\/bmb\/ldq027","article-title":"Hallux valgus: effectiveness and safety of minimally invasive surgery. 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