{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,9]],"date-time":"2026-11-09T22:17:43Z","timestamp":1794262663829,"version":"4.9.0"},"reference-count":0,"publisher":"Joint Diseases and Related Surgery","issue":"2","license":[{"start":{"date-parts":[[2021,6,11]],"date-time":"2021-06-11T00:00:00Z","timestamp":1623369600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Jt Dis Relat Surg"],"accepted":{"date-parts":[[2021,3,14]]},"published-print":{"date-parts":[[2021,8,1]]},"abstract":"<jats:p><jats:bold>Objectives:<\/jats:bold> Calcaneal fractures are the most common tarsal fractures following a foot-ankle trauma. The B\u00f6hler\u2019s angle is an important measurable angle before, during, and after surgery. In this study, we aimed to investigate correlation between B\u00f6hler\u2019s angle, calcaneal strength, and subtalar joint stress using a finite element analysis (FEA).<\/jats:p>\n                    <jats:p><jats:bold>Patients and methods:<\/jats:bold> Between January 2016 and December 2016, computed tomography (CT) scans were used with MIMICS\u00ae software for FEA. The ankle and foot of a 23-year-old male person with a height of 180 cm and weighing 80 kg was modeled as reference. Raw coronal CT images were obtained in Digital Imaging and Communications in Medicine format with the resolution of 512X512 pixels and 0.3-mm slice intervals in 135 kV. The structures including tibia, fibula and 26 other bones (talus, calcaneus, cuboid, navicular, three cuneiforms, five metatarsals, and 14 components of phalanges), cartilage and ligamentous tissues were modeled to form ankle joint. After determining B\u00f6hler\u2019s angle as 35 degrees for the reference model, a fracture line was created on calcaneus. Calcaneus was remodeled with the B\u00f6hler\u2019s angle of 45, 40, 30, 25, 20, 10, and 0 degrees respectively. All models were transferred to ANSYS software for FEA and the loads on the lower extremities with normal posture were applied on models.<\/jats:p>\n                    <jats:p><jats:bold>Results:<\/jats:bold> Analysis of all models based in the reference model revealed that maximum tension values on calcaneus increased, while the B\u00f6hler\u2019s angle decreased, indicating a statistically significant difference. The decreased B\u00f6hler\u2019s angle indicated statistically significantly higher maximum tension values (p=0.04). Action force in subtalar joint was evaluated by comparing with the forces in reference model. The increased B\u00f6hler\u2019s angle was found to be associated with statistically significantly decreased amount of load on subtalar joint. The decreased B\u00f6hler\u2019s angle was related to the statistically significantly increased amount of load on subtalar joint.<\/jats:p>\n                    <jats:p><jats:bold>Conclusion:<\/jats:bold> Our study results suggest that decreased B\u00f6hler\u2019s angle increases the possibility of subtalar arthrosis, although overcorrection of the B\u00f6hler\u2019s angle seems not to increase the risk of subtalar arthrosis.<\/jats:p>","DOI":"10.52312\/jdrs.2021.81251","type":"journal-article","created":{"date-parts":[[2021,7,6]],"date-time":"2021-07-06T09:36:12Z","timestamp":1625564172000},"page":"420-427","source":"Crossref","is-referenced-by-count":24,"title":["The importance of B\u00f6hler\u2019s angle in calcaneus geometry: A finite element model study"],"prefix":"10.52312","volume":"32","author":[{"given":"Alper","family":"G\u00fcltekin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erdin\u00e7","family":"Acar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Levent","family":"U\u011fur","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ayta\u00e7","family":"Y\u0131ld\u0131z","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ula\u015f","family":"Serarslan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"30018","published-online":{"date-parts":[[2021,6,11]]},"container-title":["Joint Diseases and Related Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/jointdrs.org\/full-text-pdf\/1259","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/jointdrs.org\/full-text-pdf\/1259","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,7,6]],"date-time":"2021-07-06T15:55:44Z","timestamp":1625586944000},"score":1,"resource":{"primary":{"URL":"https:\/\/jointdrs.org\/doi\/10.52312\/jdrs.2021.81251"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6,11]]},"references-count":0,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2021,8,1]]}},"URL":"https:\/\/doi.org\/10.52312\/jdrs.2021.81251","relation":{},"ISSN":["2687-4784","2687-4792"],"issn-type":[{"value":"2687-4784","type":"print"},{"value":"2687-4792","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,6,11]]}}}