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However, the relationship between the degree of HV deformity and metatarsal pain has not been systematically examined. The purpose of the present study was to investigate the correlation between metatarsal pain and the degree of HV deformity. Between October 2017 and September 2018, 512 HV patients (944 feet) participated in an evaluation of their HV angle (HVA) using X-ray images. The participants were divided into four groups corresponding to their HVA (&lt;15\u00b0, 15\u00b0 to 20\u00b0, 21\u00b0 to 40\u00b0, or &gt;40\u00b0). Load rate, impulse, contact duration, and contact area were measured and recorded as dynamic gait parameters using the RsScan system. Data were evaluated using SPSS statistical software. The visual analog scale (VAS) was used to assess metatarsal pain. For the four HV deformity groups, the peak value of impulse and contact duration was concentrated on the second and third metatarsals (Meta2 and Meta3) (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:mrow><\/mml:math>); contact area was also shown on metatarsals 1, 2, and 5 (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mrow><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:mrow><\/mml:math>). Metatarsal pain on Meta2 had the highest VAS score (VAS: 6.57), followed by Meta3 (Mean VAS: 5.72). In the HV\u2009&gt;\u200940\u00b0 group, the load location on Meta2 was transferred to Meta1. The percent of pain attributed to Meta2 and Meta3 was also increased in this group. These findings illustrated that metatarsal pain was primarily located on Meta2 and Meta3 in the different degrees of HV deformity. This information can provide the location to target for pain relief and help guide further rehabilitation.<\/jats:p>","DOI":"10.1155\/2020\/8929153","type":"journal-article","created":{"date-parts":[[2020,3,26]],"date-time":"2020-03-26T23:31:45Z","timestamp":1585265505000},"page":"1-7","source":"Crossref","is-referenced-by-count":17,"title":["The Biomechanical Relationship between Hallux Valgus Deformity and Metatarsal Pain"],"prefix":"10.1155","volume":"2020","author":[{"given":"Cheng","family":"Chang","sequence":"first","affiliation":[{"name":"Beijing University of Chinese Medicine, Beijing, China"},{"name":"Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qing-Fu","family":"Wang","sequence":"additional","affiliation":[{"name":"Beijing University of Chinese Medicine, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun-Chao","family":"Guo","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, Key Laboratory of Human Motion Analysis and Rehabilitation Technology of the Ministry of Civil Affairs, National Research Center for Rehabilitation Technical Aids, Beijing, China"},{"name":"Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Duo-Duo","family":"Li","sequence":"additional","affiliation":[{"name":"Beijing University of Chinese Medicine, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3480-4395","authenticated-orcid":true,"given":"Yu-Bo","family":"Fan","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, Key Laboratory of Human Motion Analysis and Rehabilitation Technology of the Ministry of Civil Affairs, National Research Center for Rehabilitation Technical Aids, Beijing, China"},{"name":"Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1105-3007","authenticated-orcid":true,"given":"Jian-Min","family":"Wen","sequence":"additional","affiliation":[{"name":"Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","reference":[{"key":"1","first-page":"1038","volume":"87","year":"2005","journal-title":"The Journal of Bone and Joint 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