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. 2018 Feb 13;19:51. doi: 10.1186/s12891-018-1974-1

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — The radiographicmeasurements on the cross section. a The cross angle (α) wasdetermined by measuring theangle between the bimalleolaraxis and the major fracture line. b The fragment lengthratio (FLR) was determined by calculatingthe percent of length (l)/length (L). c The fragment arearatio (FAR) was determined bycalculating the percent of area(s)/area (s + S)