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. 2017 Apr 7;18:148. doi: 10.1186/s12891-017-1509-1

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© The Author(s). 2017

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. 3 — Mid-vertebral body height and vertebral kyphosis angle. Vertebral body height was 17.4 ± 0.7 mm in the TPD group and 16.6 ± 0.9 mm in the BP group before treatment. This measure decreased to 13.0 ± 0.7 mm and 13.2 ± 0.9 mm at the final follow-up, respectively (p = 0.228, paired t-test). The vertebral kyphosis angle was 8.6 ± 1.0° in the TPD group and 10.8 ± 0.8° in the BP group before treatment. This angle increased to 13.2 ± 1.3° and 14.6 ± 1.0° at the final follow-up, respectively (p = 0.495, paired t-test)