Review Article

Plant Extracts in the Bone Repair Process: A Systematic Review

Table 4

Analysis of methodological bias of the studies demonstrating the action of plant extracts in the bone repair process.

Chow et al., 1982 [20]Juma Ab, 2007 [21]Sakakura et al., 2007 [22]Oztürk et al., 2008 [23]Huh et al., 2009 [24]Kolios et al., 2009 [25]Giavaresi et al., 2010 [26]Kolios et al., 2010 [27]Lacerda et al., 2010 [28]Estai et al., 2011 [29]Sharan et al., 2011 [30]Ngueguim et al., 2012 [31]Kumar et al., 2013 [32]Ngueguim et al., 2013 [33]He and Shen, 2014 [34]Neto et al., 2015 [35]Burim et al., 2016 [36]Ezirganli et al., 2016 [37]Selvakumar et al., 2016 [38]Yang et al., 2016 [39]Zhuang et al., 2016 [40]Adhikary et al., 2017 [41]Chen et al., 2017 [42]Florence et al., 2017 [43]Karvande et al., 2017 [44]Khedgikar et al., 2017 [45]Neto et al., 2017 [46]Porwal et al., 2017 [47]Giaze et al., 2018 [48]Gurger et al., 2019 [49]Pal et al., 2019 [50]

Title
Accurate and concise description of the article contentXXXXXXXXXXXXXXXXXXXXXXXXXXXXX2993.55%

Abstract
Background summary, research objectives, methods, principal findings, and conclusionsXXXXXXXXXXXXXXXXXXXXXXXX2477.42%

Introduction
Sufficient scientific backgroundXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3096.77%
Explanation of the experimental approach and rationaleXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX31100%

Objectives
Clear primary and second objectivesXXXXXXXXXXXXXXXXXXXXXXXX2477.42%

Materials and methods
Nature of the ethical review permissions, relevant licenses, and national or institutional guidelines for the care and use of animalsXXXXXXXXXXXXXXXXXXXXXXXXX2580.64%
Study design
Number of animals per groupXXXXXXXXXXXXXXXXXXXXXXXXXX2683.87%
Information on whether the experiment was performed as a blind controlled studyXXXXXXXXXX1032.26%
Experimental procedures
Treatment descriptionXXXXXXXXXXXXXXXXXXXXXXXXXXXX2890.32%
Treatment dosageXXXXXXXXXXXXXXXXXXXXXXXXXXXXX2993.55%
Treatment durationXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3096.77%
Time of day of treatment administrationXX26.45%
Experimental animals
Information regarding animal speciesXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX31100%
Animals’ strainXXXXXXXXXXXXXXXXXXXXXXXXXXXXX2993.55%
Animals’ sexXXXXXXXXXXXXXXXXXXXXXXXXXXX2787.09%
Animals’ weight rangeXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3096.77%
Animals’ ageXXXXXXXXXXXXXXXXXXX1961.29%
Description of genetic modification status (knockout, transgenic, SPF)00%
Information related to previous procedures performed on the animalsXXXXXXXXXXXXXX1445.16%
Housing and husbandry
Housing of experimental animals (facility type, cage or housing type, material, number of cage companions)XXXXXXXXX929.03%
Husbandry conditions (breeding program, light/dark cycle, temperature, water)XXXXXXXXXXXXXXX1548.39%
Welfare-related assessments and interventions that were carried out before, during, or after the experimentXXXXXXXXXX1032.26%
Sample size
Total number of animals used in each experimental group and the number of animals in each experimental groupXXXXXXXXXXXXXXXXXXXXXXX2374.19%
Explanation regarding the decision of the number of animals and details of sample size calculationX13.22%
Allocating animals to experimental groups
Full details of how animals were allocated to experimental groups (including randomization or matching)XXXXXXXXX929.03%
Order in which the animals in the different experimental groups were treated and assessed00%
Experimental outcomes
Clear experimental outcomes assessedXXXXXXXXXXXXXXXXXXXXXXXXXXXX2890.32%
Statistical methods
Statistical methods used for each analysisXXXXXXXXXXXXXXXXXXXXXXXXXXXX2890.32%
Unit of analysis specifications for each datasetXXXXXXXXXXXXXXXXXXXXXXXXXXX2787.09%
Methods used to assess whether the data met the assumptions of the statistical approachXXXXXXXXXXXXXXXXXXXXXXXXXXXX2890.32%

Results
Baseline data
Description of animals’ health status, for each experimental group, before treatment00%
Number analyzed
Number of animals in each group included in each analysis (absolute numbers)XXXXXXXXXXXXXXXXXXXXXXXXXXXXX2993.55%
Animals or data not included in the analysis (and explanation for the exclusion)XX26.45%
Outcomes and estimation
Information ()XXXXXXXXXXXXXXXXXXXXXXXXXXXX2890.32%
Adverse events
Information regarding mortality of experimental animals ()XX26.45%
Modifications to the experimental protocols made to reduce adverse events00%

Discussion
Interpretation/scientific implications
Interpretation of the results, taking into account the study objectives and hypotheses, current theory, and relevant studiesXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX31100%
Comments on the study limitations (sources of bias, limitations of the animal model, imprecision associated with the results)XXXXXX619.35%
Generalisability/translation
Comments on how the findings are likely to translate to other species or systems, including relevance to human biologyXXXXXXXXXXXXXX1445.16%
Funding
List of funding sources and the role of the funder(s) in the studyXXXXXXXXXXXXXX1445.16%
Total results14212522302522252226242518252726312322242226262530242323252420

X: related; unmarked: not related.