{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T23:38:41Z","timestamp":1787614721940,"version":"build-2736575974"},"reference-count":48,"publisher":"Elsevier BV","issue":"5","license":[{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Foot and Ankle Surgery"],"published-print":{"date-parts":[[2026,7]]},"DOI":"10.1016\/j.fas.2025.12.002","type":"journal-article","created":{"date-parts":[[2025,12,4]],"date-time":"2025-12-04T08:05:11Z","timestamp":1764835511000},"page":"442-450","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":1,"title":["Analysis of hypermobility of the first metatarsal in hallux valgus deformity: A weight bearing computed tomography study"],"prefix":"10.1016","volume":"32","author":[{"given":"Dov Lagus","family":"Rosemberg","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos Felipe Teixeira","family":"Lobo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rafael Barban","family":"Sposeto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rodrigo Sousa","family":"Macedo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fabio Corr\u00eaa Paiva","family":"Fonseca","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Albert","family":"DaCosta","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cesar","family":"de Cesar Netto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandre Leme","family":"Godoy-Santos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"issue":"4-S","key":"10.1016\/j.fas.2025.12.002_bib1","first-page":"47","article-title":"Hypermobility of the First Ray: the Cinderella of the measurements conventionally assessed for correction of Hallux Valgus","volume":"91","author":"Biz","year":"2020","journal-title":"Acta Biomed"},{"key":"10.1016\/j.fas.2025.12.002_bib2","doi-asserted-by":"crossref","first-page":"67","DOI":"10.1016\/j.gaitpost.2024.05.029","article-title":"Development and validation of a fully automated tool to quantify 3D foot and ankle alignment using weight-bearing CT","volume":"113","author":"Van den Borre","year":"2024","journal-title":"Gait Posture"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib3","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1016\/j.fcl.2019.10.001","article-title":"Use of advanced weightbearing imaging in evaluation of hallux valgus","volume":"25","author":"de Cesar Netto","year":"2020","journal-title":"Foot Ankle Clin"},{"issue":"14","key":"10.1016\/j.fas.2025.12.002_bib4","doi-asserted-by":"crossref","first-page":"e595","DOI":"10.5435\/JAAOS-D-19-00700","article-title":"Weight-bearing CT Scans in Foot and Ankle Surgery","volume":"28","author":"Conti","year":"2020","journal-title":"J Am Acad Orthop Surg"},{"issue":"7","key":"10.1016\/j.fas.2025.12.002_bib5","doi-asserted-by":"crossref","first-page":"759","DOI":"10.3113\/FAI.2007.0759","article-title":"Hallux valgus: demographics, etiology, and radiographic assessment","volume":"28","author":"Coughlin","year":"2007","journal-title":"Foot Ankle Int"},{"issue":"8","key":"10.1016\/j.fas.2025.12.002_bib6","doi-asserted-by":"crossref","first-page":"1049","DOI":"10.1177\/10711007221091812","article-title":"A case-control study of 3D vs 2D weightbearing CT measurements of the M1-M2 intermetatarsal angle in hallux valgus","volume":"43","author":"Day","year":"2022","journal-title":"Foot Ankle Int"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib7","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1177\/1071100712460217","article-title":"First ray instability in hallux valgus deformity: a radiokinematic and pedobarographic analysis","volume":"34","author":"Dietze","year":"2013","journal-title":"Foot Ankle Int"},{"issue":"9","key":"10.1016\/j.fas.2025.12.002_bib8","doi-asserted-by":"crossref","first-page":"1655","DOI":"10.1007\/s00264-013-1977-3","article-title":"Hallux valgus and hypermobility of the first ray: Facts and fiction","volume":"37","author":"Doty","year":"2013","journal-title":"Int Orthop"},{"issue":"4","key":"10.1016\/j.fas.2025.12.002_bib9","doi-asserted-by":"crossref","first-page":"1149","DOI":"10.3758\/BRM.41.4.1149","article-title":"Statistical power analyses using G*Power 3.1: Tests for correlation and regression analyses","volume":"41","author":"Erdfelder","year":"2009","journal-title":"Behav Res Methods"},{"issue":"10","key":"10.1016\/j.fas.2025.12.002_bib10","doi-asserted-by":"crossref","first-page":"651","DOI":"10.1177\/107110079902001007","article-title":"Mobility of the first tarsometatarsal joint in relation to hallux valgus deformity: anatomical and biomechanical aspects","volume":"20","author":"Faber","year":"1999","journal-title":"Foot Ankle Int"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib11","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1177\/107110079501600302","article-title":"First metatarsocuneiform motion: a radiographic and statistical analysis","volume":"16","author":"Fritz","year":"1995","journal-title":"Foot Ankle Int"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib12","doi-asserted-by":"crossref","first-page":"140","DOI":"10.1186\/s13018-015-0289-2","article-title":"Mobility of the first metatarsal-cuneiform joint in patients with and without hallux valgus: In vivo three-dimensional analysis using computerized tomography scan","volume":"10","author":"Geng","year":"2015","journal-title":"J Orthop Surg Res"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib13","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1177\/107110070202300310","article-title":"Comparison of two methods used to assess first-ray mobility","volume":"23","author":"Glasoe","year":"2002","journal-title":"Foot Ankle Int"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib14","doi-asserted-by":"crossref","first-page":"122","DOI":"10.1016\/S0003-9993(99)90320-9","article-title":"Measuring first ray mobility with a new device","volume":"80","author":"Glasoe","year":"1999","journal-title":"Arch Phys Med Rehabil"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib15","doi-asserted-by":"crossref","first-page":"240","DOI":"10.1177\/107110070002100310","article-title":"The reliability and validity of a first ray measurement device","volume":"21","author":"Glasoe","year":"2000","journal-title":"Foot Ankle Int"},{"issue":"2","key":"10.1016\/j.fas.2025.12.002_bib16","doi-asserted-by":"crossref","first-page":"135","DOI":"10.1590\/1413-785220182602188482","article-title":"de C. Weight-bearing computed tomography of the foot and ankle: An update and future directions","volume":"26","author":"Godoy-Santos","year":"2018","journal-title":"Acta Ortop Bras"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib17","doi-asserted-by":"crossref","first-page":"44","DOI":"10.3113\/FAI.2012.0044","article-title":"Mobility of the first ray in various foot disorders","volume":"33","author":"Greisberg","year":"2012","journal-title":"Foot Ankle Int"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib18","doi-asserted-by":"crossref","first-page":"376","DOI":"10.1302\/0301-620X.33B3.376","article-title":"Observations on hallux valgus","volume":"33-B","author":"Hardy","year":"1951","journal-title":"J Bone Jt Surg Br"},{"key":"10.1016\/j.fas.2025.12.002_bib19","unstructured":"JASP Team. JASP (Version 0.18.3)[Computer software]. Preprint posted online 2024."},{"key":"10.1016\/j.fas.2025.12.002_bib20","doi-asserted-by":"crossref","DOI":"10.1016\/j.fas.2023.06.009","article-title":"Trends and age- and sex-stratified analysis of hallux valgus correction surgery from 2014 to 2019: A nationwide population-based cohort study in Japan","author":"Kido","year":"2023","journal-title":"Foot Ankle Surg"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib21","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1177\/1071100717744174","article-title":"Comparison of intercuneiform 1-2 joint mobility between hallux valgus and normal feet using weightbearing computed tomography and 3-dimensional analysis","volume":"39","author":"Kimura","year":"2018","journal-title":"Foot Ankle Int"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib22","doi-asserted-by":"crossref","first-page":"333","DOI":"10.1177\/1071100720962471","article-title":"Weightbearing computed tomography and 3-dimensional analysis of mobility changes of the first ray after proximal oblique osteotomy for hallux valgus","volume":"42","author":"Kimura","year":"2021","journal-title":"Foot Ankle Int"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib23","doi-asserted-by":"crossref","first-page":"247","DOI":"10.2106\/JBJS.16.00542","article-title":"Evaluation of first-ray mobility in patients with hallux valgus using weight-bearing CT and a 3-D analysis system a comparison with normal feet","volume":"99","author":"Kimura","year":"2017","journal-title":"J Bone Jt Surg"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib24","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1177\/107110079401500103","article-title":"Clinical, quantitative assessment of first tarsometatarsal mobility in the sagittal plane and its relation to hallux valgus deformity","volume":"15","author":"Klaue","year":"1994","journal-title":"Foot Ankle Int"},{"issue":"12","key":"10.1016\/j.fas.2025.12.002_bib25","doi-asserted-by":"crossref","first-page":"1438","DOI":"10.1177\/1071100719868503","article-title":"Radiographic assessment of first tarsometatarsal joint shape and orientation","volume":"40","author":"Koury","year":"2019","journal-title":"Foot Ankle Int"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib26","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1177\/10711007211034522","article-title":"High reliability for semiautomated 3D measurements based on weightbearing CT scans","volume":"43","author":"Kvarda","year":"2022","journal-title":"Foot Ankle Int"},{"issue":"2","key":"10.1016\/j.fas.2025.12.002_bib27","first-page":"404","article-title":"A quarter of a century of experience with the operative correction of the metatarsus varus primus in hallux valgus","volume":"17","author":"Lapidus","year":"1956","journal-title":"Bull Hosp Jt Dis"},{"key":"10.1016\/j.fas.2025.12.002_bib28","first-page":"119","article-title":"The author\u2019s bunion operation from 1931 to 1959","volume":"16","author":"Lapidus","year":"1960","journal-title":"Clin Orthop"},{"key":"10.1016\/j.fas.2025.12.002_bib29","first-page":"183","article-title":"The operative correction of metatarsus varus primus in hallux valgus","volume":"58","author":"Lapidus","year":"1934","journal-title":"Surg Gynecol Obstet"},{"issue":"12","key":"10.1016\/j.fas.2025.12.002_bib30","doi-asserted-by":"crossref","first-page":"960","DOI":"10.1177\/107110070102201206","article-title":"Measurement of first-ray mobility in normal vs. hallux valgus patients","volume":"22","author":"Lee","year":"2001","journal-title":"Foot Ankle Int"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib31","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1016\/j.fas.2023.09.001","article-title":"Diagnostic applications and benefits of weightbearing CT in the foot and ankle: a systematic review of clinical studies","volume":"30","author":"Li","year":"2024","journal-title":"Foot Ankle Surg"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib32","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.fcl.2019.10.004","article-title":"Hypermobility in hallux valgus","volume":"25","author":"Mansur","year":"2020","journal-title":"Foot Ankle Clin"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib33","doi-asserted-by":"crossref","first-page":"396","DOI":"10.1002\/acr.20396","article-title":"Impact of hallux valgus severity on general and foot-specific health-related quality of life","volume":"63","author":"Menz","year":"2011","journal-title":"Arthritis Care Res"},{"issue":"9","key":"10.1016\/j.fas.2025.12.002_bib34","doi-asserted-by":"crossref","first-page":"1104","DOI":"10.1177\/1071100719850802","article-title":"Dynamic First Tarsometatarsal Instability During Gait Evaluated by Pedobarographic Examination in Patients With Hallux Valgus","volume":"40","author":"Min","year":"2019","journal-title":"Foot Ankle Int"},{"issue":"2","key":"10.1016\/j.fas.2025.12.002_bib35","first-page":"187","article-title":"Hypermobility of the first metatarsal bone: the interlinking factor between metatarsalgia and longitudinal arch strains","volume":"10","author":"Morton","year":"1928","journal-title":"J Bone Jt Surg"},{"issue":"177","key":"10.1016\/j.fas.2025.12.002_bib36","doi-asserted-by":"crossref","first-page":"270","DOI":"10.1136\/pgmj.16.177.270","article-title":"The Human Foot. Its Evolution, Physiology and Functional Disorders","volume":"16","author":"Morton","year":"1940","journal-title":"Post Med J"},{"issue":"2","key":"10.1016\/j.fas.2025.12.002_bib37","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1007\/s00776-013-0513-z","article-title":"Prevalence of hallux valgus and risk factors among Japanese community dwellers","volume":"19","author":"Nishimura","year":"2014","journal-title":"J Orthop Sci"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib38","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1186\/1757-1146-3-21","article-title":"Prevalence of hallux valgus in the general population: a systematic review and meta-analysis","volume":"3","author":"Nix","year":"2010","journal-title":"J Foot Ankle Res"},{"issue":"9","key":"10.1016\/j.fas.2025.12.002_bib39","doi-asserted-by":"crossref","first-page":"5507","DOI":"10.1007\/s00402-023-04849-3","article-title":"Minimally invasive Chevron Akin (MICA) osteotomy for severe hallux valgus","volume":"143","author":"Nunes","year":"2023","journal-title":"Arch Orthop Trauma Surg"},{"key":"10.1016\/j.fas.2025.12.002_bib40","article-title":"Minimally invasive chevron akin: locking the metatarsal-cuneiform joint","author":"Nunes","year":"2022","journal-title":"Foot Ankle Spec"},{"issue":"5-6","key":"10.1016\/j.fas.2025.12.002_bib41","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1007\/s00508-020-01705-x","article-title":"A novel method of clinical first tarsometatarsal joint hypermobility testing and radiologic verification","volume":"133","author":"Ornig","year":"2021","journal-title":"Wien Klin Woche"},{"issue":"0123456789","key":"10.1016\/j.fas.2025.12.002_bib42","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1007\/s43465-020-00110-w","article-title":"Three-dimensional printed anatomical models help in correcting foot alignment in hallux valgus deformities","volume":"54","author":"Ozturk","year":"2020","journal-title":"Indian J Orthop"},{"issue":"6","key":"10.1016\/j.fas.2025.12.002_bib43","doi-asserted-by":"crossref","first-page":"761","DOI":"10.1016\/j.fas.2018.10.001","article-title":"Incidence of hallux valgus primary surgical treatment. Finnish nationwide data from 1997 to 2014","volume":"25","author":"Partio","year":"2019","journal-title":"Foot Ankle Surg"},{"issue":"6","key":"10.1016\/j.fas.2025.12.002_bib44","doi-asserted-by":"crossref","first-page":"331","DOI":"10.1177\/107110079601700606","article-title":"Radiographic assessment of the second metatarsal: measure of first ray hypermobility","volume":"17","author":"Prieskorn","year":"1996","journal-title":"Foot Ankle Int"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib45","doi-asserted-by":"crossref","first-page":"201","DOI":"10.1016\/j.fas.2014.04.004","article-title":"PedCAT for 3D-imaging in standing position allows for more accurate bone position (angle) measurement than radiographs or CT","volume":"20","author":"Richter","year":"2014","journal-title":"Foot Ankle Surg"},{"issue":"3","key":"10.1016\/j.fas.2025.12.002_bib46","doi-asserted-by":"crossref","first-page":"298","DOI":"10.3113\/FAI.2008.0298","article-title":"Surgical treatment of hallux valgus and forefoot deformities in Sweden: a population-based study","volume":"29","author":"Saro","year":"2008","journal-title":"Foot Ankle Int"},{"issue":"1","key":"10.1016\/j.fas.2025.12.002_bib47","doi-asserted-by":"crossref","first-page":"146","DOI":"10.2214\/AJR.12.8481","article-title":"Weight-bearing CT imaging of the lower extremity","volume":"200","author":"Tuominen","year":"2013","journal-title":"AJR Am J Roentgenol"},{"issue":"8","key":"10.1016\/j.fas.2025.12.002_bib48","doi-asserted-by":"crossref","first-page":"4700","DOI":"10.1118\/1.3611039","article-title":"A dedicated cone-beam CT system for musculoskeletal extremities imaging: design, optimization, and initial performance characterization","volume":"38","author":"Zbijewski","year":"2011","journal-title":"Med Phys"}],"container-title":["Foot and Ankle Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1268773125002711?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1268773125002711?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T23:00:09Z","timestamp":1778799609000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1268773125002711"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7]]},"references-count":48,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2026,7]]}},"alternative-id":["S1268773125002711"],"URL":"https:\/\/doi.org\/10.1016\/j.fas.2025.12.002","relation":{},"ISSN":["1268-7731"],"issn-type":[{"value":"1268-7731","type":"print"}],"subject":[],"published":{"date-parts":[[2026,7]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Analysis of hypermobility of the first metatarsal in hallux valgus deformity: A weight bearing computed tomography study","name":"articletitle","label":"Article Title"},{"value":"Foot and Ankle Surgery","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.fas.2025.12.002","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2025 European Foot and Ankle Society. Published by Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}]}}