{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T17:20:03Z","timestamp":1787592003492,"version":"build-2736575974"},"reference-count":54,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,3,9]],"date-time":"2022-03-09T00:00:00Z","timestamp":1646784000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100007279","name":"Shanghai Municipal Health Bureau","doi-asserted-by":"publisher","award":["21410760200"],"award-info":[{"award-number":["21410760200"]}],"id":[{"id":"10.13039\/501100007279","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Bioeng. Biotechnol."],"abstract":"<jats:p>The development of minimally invasive procedures and implant materials has improved the fixation strength of implants and is less traumatic in surgery. The purpose of this study was to propose a novel \u201cdouble-point fixation\u201d for calcaneal fractures and compare its biomechanical stability with the traditional \u201cthree-point fixation.\u201d A three-dimensional finite element foot model with a Sanders type IIIAB calcaneal fracture was developed based on clinical images comprising bones, plantar fascia, ligaments, and encapsulated soft tissue. Double-point and three-point fixation resembled the surgical procedure with a volar distal radius plate and calcaneal locking plate, respectively. The stress distribution, fracture displacement, and change of the B\u00f6hler angle and Gissane\u2019s angle were estimated by a walking simulation using the model, and the predictions between the double-point and three-point fixation were compared at heel-strike, midstance, and push-off instants. Double-point fixation demonstrated lower bone stress (103.3 <jats:italic>vs.<\/jats:italic> 199.4\u00a0MPa), but higher implant stress (1,084.0 <jats:italic>vs.<\/jats:italic> 577.9\u00a0MPa). The model displacement of double-point fixation was higher than that of three-point fixation (3.68 <jats:italic>vs.<\/jats:italic> 2.53\u00a0mm). The displacement of the posterior joint facet (0.127 <jats:italic>vs.<\/jats:italic> 0.150\u00a0mm) and the changes of the B\u00f6hler angle (0.9\u00b0 <jats:italic>vs.<\/jats:italic> 1.4\u00b0) and Gissane\u2019s angle (0.7\u00b0 <jats:italic>vs.<\/jats:italic> 0.9\u00b0) in double-point fixation were comparably lower. Double-point fixation by volar distal radius plates demonstrated sufficient and favorable fixation stability and a lower risk of postoperative stress fracture, which may potentially serve as a new fixation modality for the treatment of displaced intra-articular calcaneal fractures.<\/jats:p>","DOI":"10.3389\/fbioe.2022.791554","type":"journal-article","created":{"date-parts":[[2022,3,9]],"date-time":"2022-03-09T09:37:20Z","timestamp":1646818640000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":11,"title":["Biomechanical Analysis of a Novel Double-Point Fixation Method for Displaced Intra-Articular Calcaneal Fractures"],"prefix":"10.3389","volume":"10","author":[{"given":"Miko Lin","family":"Lv","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ming","family":"Ni","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wanju","family":"Sun","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Duo Wai-Chi","family":"Wong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuren","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongwei","family":"Jia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ming","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2022,3,9]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"2083","DOI":"10.1007\/s11517-018-1843-y","article-title":"Implementation and Validation of Constitutive Relations for Human Dermis Mechanical Response","volume":"56","author":"Aldieri","year":"2018","journal-title":"Med. 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