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. 2019 Sep 5;20:411. doi: 10.1186/s12891-019-2802-y

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© The Author(s). 2019

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. 8 — The quantity of trabecula under the trochlear groove through micro-CT analyze. The BV/TV, and TB. Number in the PG and PG were significantly decreased at 3 weeks (P < 0.05). The increase in TB. SP was a consistent result with the decrease of BV/TV, TB.N. The changes in quantity reflected that the interspace of trabecular was enlarged. No significant changes in TB. Thickness was found among the three groups at 3 weeks. No significant difference was found in the parameters among the three groups at 12 weeks