{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T15:37:51Z","timestamp":1782142671769,"version":"3.54.5"},"reference-count":31,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Foot &amp; Ankle Orthopaedics"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Recognizing preoperative first-ray hypermobility is important to planning hallux valgus (HV) surgery. A recent study showed the minimally invasive chevron Akin (MICA) osteotomy increased varus displacement of the proximal fragment of the first metatarsal osteotomy. The present study aims to evaluate the ability of the radiographic first-ray squeeze test to predict the varus displacement of the proximal fragment of the first metatarsal osteotomy when performing the MICA procedure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A prospective case series of patients with moderate to severe HV who underwent MICA was performed. The HV deformity correction was analyzed by comparing the preoperative and 12-week postoperative hallux valgus angle (HVA) and the intermetatarsal angle between the first and second rays (1-2 IMA). The ability of the radiographic first-ray squeeze test to predict the varus displacement of the first metatarsal was done by comparing the preoperative 1-2 IMA measured in the AP radiographic first-ray squeeze test (IMA-ST) with the intermetatarsal angle between the second metatarsal and the axis of the first metatarsal osteotomy proximal fragment (IAPF) taken 12\u2009weeks postoperatively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Between July 2022 and May 2023, a total of 39 feet in 28 patients underwent MICA. The mean IMA improved from 13.8 (SD\u2009=\u20092.2) to 3.8 degrees (SD\u2009=\u20091.5) ( P\u2009&lt;\u2009.001), and the mean HVA improved from 27.8 (SD\u2009=\u20096.1) to 4.9 degrees (SD\u2009=\u20092.5) ( P\u2009&lt;\u2009.001). A linear regression analysis revealed that IMA-ST is highly associated with the 12\u2009week assessed IAPF ( P\u2009&lt;\u2009.001).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>The preoperative radiographic first-ray squeeze test appears to predict with high fidelity the varus displacement of the proximal fragment of the first metatarsal that can occur after the MICA procedure. Level of Evidence: Level III, prospective cohort study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/24730114241239331","type":"journal-article","created":{"date-parts":[[2024,3,21]],"date-time":"2024-03-21T02:51:20Z","timestamp":1710989480000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Minimally Invasive Chevron Akin Osteotomy: Preoperative Planning Using the Radiographic First-Ray Squeeze Test"],"prefix":"10.1177","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4431-5576","authenticated-orcid":false,"given":"Gustavo Araujo","family":"Nunes","sequence":"first","affiliation":[{"name":"COTE Bras\u00edlia Clinic, Federal District, Brazil"},{"name":"MIFAS by GRECMIP, Bordeaux-Merignac, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8032-3077","authenticated-orcid":false,"given":"Gabriel Ferraz","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Foot and Ankle Surgery Group, Orthopedic and Traumatology Unit Prevent Senior, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2320-9769","authenticated-orcid":false,"given":"Miguel Viana","family":"Pereira Filho","sequence":"additional","affiliation":[{"name":"Foot and Ankle Surgery Group, Orthopedic and Traumatology Unit Prevent Senior, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1082-6490","authenticated-orcid":false,"given":"Kepler Alencar Mendes de","family":"Carvalho","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Duke University, Durham, NC, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4167-7427","authenticated-orcid":false,"given":"Thomas Lorchan","family":"Lewis","sequence":"additional","affiliation":[{"name":"King\u2019s Foot and Ankle Unit, King\u2019s College Hospital National Health Service Foundation Trust, London, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5665-480X","authenticated-orcid":false,"given":"Jorge","family":"Castellini","sequence":"additional","affiliation":[{"name":"Private practice, Ciudad Aut\u00f3noma de Buenos Aires, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7411-9720","authenticated-orcid":false,"given":"Robbie","family":"Ray","sequence":"additional","affiliation":[{"name":"King\u2019s Foot and Ankle Unit, King\u2019s College Hospital National Health Service Foundation Trust, London, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joel","family":"Vernois","sequence":"additional","affiliation":[{"name":"Institut de Chirurgie du Pied (ICP), Clinique Blomet, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,3,20]]},"reference":[{"issue":"4","key":"bibr1-24730114241239331","volume":"91","author":"Biz C","year":"2020","journal-title":"Acta Biomed"},{"key":"bibr2-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/10711007221118568"},{"key":"bibr3-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/24730114221112103"},{"key":"bibr4-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/107110070202300114"},{"key":"bibr5-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/10711007221114123"},{"key":"bibr6-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-021-05111-4"},{"key":"bibr7-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/107110079902001007"},{"key":"bibr8-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1016\/j.fas.2021.11.004"},{"key":"bibr9-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/24730114221151069"},{"key":"bibr10-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/1071100717744174"},{"key":"bibr11-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/24730114231198235"},{"key":"bibr12-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1016\/j.fas.2022.01.010"},{"key":"bibr13-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/10711007211008498"},{"key":"bibr14-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/10711007221146195"},{"issue":"3","key":"bibr15-24730114241239331","first-page":"469","volume":"5","author":"Myerson MS","year":"2000","journal-title":"Foot Ankle Clin"},{"key":"bibr16-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-023-04849-3"},{"key":"bibr17-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/19386400221079155"},{"key":"bibr18-24730114241239331","volume-title":"Bunion Surgery","author":"Palladino SJ","year":"1991","edition":"2"},{"key":"bibr19-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1016\/j.fcl.2014.02.002"},{"key":"bibr20-24730114241239331","first-page":"1","volume":"15","author":"Redfern D","year":"2015","journal-title":"Tech Foot Ankle Surg"},{"key":"bibr21-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.87B8.16467"},{"key":"bibr22-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1053\/j.jfas.2003.09.010"},{"key":"bibr23-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1053\/j.jfas.2022.03.013"},{"key":"bibr24-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1016\/j.fas.2008.05.006"},{"key":"bibr25-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1016\/j.fcl.2018.01.001"},{"key":"bibr26-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/10711007211049193"},{"key":"bibr27-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1016\/j.fcl.2016.04.002"},{"key":"bibr28-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1016\/j.fuspru.2013.03.001"},{"key":"bibr29-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pmed.0040296"},{"key":"bibr30-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1053\/j.jfas.2006.04.014"},{"key":"bibr31-24730114241239331","doi-asserted-by":"publisher","DOI":"10.1177\/1071100719893339"}],"container-title":["Foot &amp; Ankle Orthopaedics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/24730114241239331","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/24730114241239331","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/24730114241239331","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T21:30:09Z","timestamp":1777411809000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/24730114241239331"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,1]]},"references-count":31,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2024,1]]}},"alternative-id":["10.1177\/24730114241239331"],"URL":"https:\/\/doi.org\/10.1177\/24730114241239331","relation":{},"ISSN":["2473-0114","2473-0114"],"issn-type":[{"value":"2473-0114","type":"print"},{"value":"2473-0114","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,1]]},"article-number":"24730114241239331"}}