首页|Corrigendum to ‘Assessment of the viscoelastic mechanical properties of the porcine optic nerve head using micromechanical testing and finite element modeling’ [Acta Biomaterialia 134 (2021) 379-387] (Acta Biomaterialia (2021) 134 379-387) (S1742706121004530), (10.1016/j.actbio.2021.07.022))
Corrigendum to ‘Assessment of the viscoelastic mechanical properties of the porcine optic nerve head using micromechanical testing and finite element modeling’ [Acta Biomaterialia 134 (2021) 379-387] (Acta Biomaterialia (2021) 134 379-387) (S1742706121004530), (10.1016/j.actbio.2021.07.022))
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NSTL
Elsevier
? 2021 Acta Materialia Inc.The authors recently discovered that a software update caused our mechanical testing device to be mis-calibrated, with the result that a subset of our samples was unusable for analysis. We sincerely regret this turn of events. The distribution of unusable samples by anatomic region is I=2/4, N=1/4, S=0/3, T=2/5 (number of unusable samples/original number of samples). We have reanalyzed our data, excluding the unusable samples. The major outcomes of the paper are unaffected; however, there are some minor changes in the numerical values of the mechanical properties, with updated values being: matrix Young's modulus [Formula presented] kPa (median [min., max.]), Poisson's ratio [Formula presented], kinetic time-constant [Formula presented] sec, and hydraulic permeability [Formula presented] mm4/(N sec). When fitting the usable experimental data, we used the maximum experimental standard deviation for each region as the fitting criteria, rather than ? of this value as before. Further, the inferior and temporal regions are now more compliant than previously reported, and we thus observe a difference between regions in their axial strain response (p<0.001). The following figures and captions reflect the changes (underlining shows changed text; updated figures are shown). Figure 1: The scale bar in panel F is 0.140 mm.
Safa B.N.、Read A.T.、Ethier C.R.
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Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology/Emory
NSTL
Elsevier
