The authors of “What Injury Mechanism and Patterns of Ligament Status Are Associated With Isolated Coronoid, Isolated Radial Head, and Combined Fractures?” would like to correct errors found in their published study.
The authors have revised Tables 1-3 to address concerns of sparse-data bias [1-3] found in their study. A penalization approach to the analysis was performed, as recommended by Greenland and colleagues [2], and the results are shown in these three revised tables.
Table 1.
Number of patients in isolated coronoid and isolated radial head fractures groups based on MRI findings and the results of chi square test, odds ratio, and penalized odds ratio.
Table 3.
Number of patients in isolated radial head fractures and combined coronoid and radial head fractures groups based on MRI findings and the results of chi square test and odds ratios.
Table 2.
Number of patients in coronoid process fracture of isolated coronoid process and combined fractures and results of chi square and Fisher’s exact tests.
The authors apologize for the errors.
Footnotes
Erratum to: Clin Orthop Relat Res DOI: 10.1007/s11999-017-5348-z.
The online version of this article can be found under DOI: 10.1007/s11999-017-5348-z.
References
- 1.Ayubi E, Safiri S. Letter to the editor: What injury mechanism and patterns of ligament status are associated with isolated coronoid, isolated radial head, and combined fractures? Clin Orthop Relat Res. [Published online ahead of print]. DOI: 10.1007/s11999.0000000000000220. [DOI] [PMC free article] [PubMed]
- 2.Greenland S, Mansournia MA, Altman DG. Sparse data bias: A problem hiding in plain sight. BMJ. 2016;352:i1981. [DOI] [PubMed] [Google Scholar]
- 3.Lee J-H, Rhyou IH, Kim KC, Ahn KB, Moon SC, Kim HJ, Lee JH. Reply to the letter to the editor: What injury mechanism and patterns of ligament status are associated with isolated coronoid, isolated radial head, and combined fractures? Clin Orthop Relat Res. [Published online ahead of print]. DOI: 10.1007/s11999.0000000000000229. [DOI] [PMC free article] [PubMed]



