Selection of animal bone surrogate samples for orthopaedic screw testing based on human radius CT-derived bone morphology

Silva-Henao, Juan Diego; Synek, Alexander; Pahr, Dieter H.; Reisinger, Andreas

doi:10.1016/j.medengphy.2022.103786

Cited by 5 publications

(1 citation statement)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, bone structure has a complicated architecture, and in different points of the bone different structures appear. The most common measurements have a histological origin, and, in fact, they have mean or relative characteristic [5,6]. So, some clusterization by tissue type of the object is performed.…”

Section: Introductionmentioning

confidence: 99%

Topological Approach for Material Structure Analyses in Terms of R2 Orientation Distribution Function

Smirnova,

Semenova,

Prunov

et al. 2023

Mathematics

View full text Add to dashboard Cite

The application of solid mechanics theory for material behavior faces the discrete nature of modern or biological material. Despite the developed methods of homogenization, there are deviations between simulated and experiments results. The reason is homogenization, which mathematically involves a type of interpolation. The situation gets worse for complex structured materials. On the other hand, a topological approach can help in such analysis, but such an approach has computational costs. At the same time, increasing modern computational capabilities remove this barrier. This study is focused on building a method to analyze material structure in a topological sense. The orientation distribution function was used to describe the structure of the material. The plane case was investigated. Quadratic and biquadratic forms of interpolant were investigated. The persistent homology approach was used for topology analysis. For this purpose, a persistence diagram for quadratic and biquadratic forms was found and analyzed. In this study, it is shown how scaling the origin point cloud influences H1 points in the persistence diagram. It was assumed that the topology of the biquadratic form can be understood as a superposition of quadratic forms. Quantitative estimates are given for ellipticity and H1 points. A dataset of micro photos was processed using the proposed method. Furthermore, the supply criteria for the interpolation choice in quadratic or biquadratic forms was formulated.

show abstract

Section: Introductionmentioning

confidence: 99%

Topological Approach for Material Structure Analyses in Terms of R2 Orientation Distribution Function

Smirnova,

Semenova,

Prunov

et al. 2023

Mathematics

View full text Add to dashboard Cite

show abstract

A preliminary study characterizing temporal changes in soil bacterial communities after dismembered bones were buried

Wang,

Liu,

Ren

et al. 2024

Electrophoresis

View full text Add to dashboard Cite

Determining the burial time of skeletal remains is one of the most important issues of forensic medicine. We speculated that the microbiome of gravesoil may be a promising method to infer burial time by virtue of time‐dependent. As we know, forensic scientists have established various models to predict the postmortem interval of a decedent based on the changes in body and soil microbiome communities. However, limited data are available on the burial time prediction for bones, especially dismembered bones. In this exploratory study, we initially conducted 16S rRNA amplicon high‐throughput sequencing on the burial soil of 10 porcine femurs within a 120‐day period and analyzed the changes in soil microbial communities. Compared with the control soil, a higher Shannon index in the microbial diversity of burial soil containing bones was observed. Correlation analysis identified 61 time‐related bacterial families and the best subset selection method obtained best subset, containing Thermomonosporaceae, Clostridiaceae, 0319‐A21, and Oxalobacteraceae, which were used to construct a simplified multiple linear regression model with a mean absolute error (MAE) of 56.69 accumulated degree day (ADD). An additional random forest model was established based on indicators for the minimum cross‐validation error of Thermomonosporaceae, Clostridiaceae, 0319‐A21, Oxalobacteraceae, and Syntrophobacteraceae, with an MAE of 55.65 ADD. The produced empirical data in this pilot study provided the evidence of feasibility that the microbial successional changes of burial soil will predict the burial time of dismembered bones and may also expand the current knowledge of the effects of bone burial on soil bacterial communities.

show abstract

Critical loss of primary implant stability in osteosynthesis locking screws under cyclic overloading

Silva-Henao,

Schober,

Pahr

et al. 2024

Medical Engineering & Physics

View full text Add to dashboard Cite

Selection of animal bone surrogate samples for orthopaedic screw testing based on human radius CT-derived bone morphology

Cited by 5 publications

References 43 publications

Topological Approach for Material Structure Analyses in Terms of R2 Orientation Distribution Function

Topological Approach for Material Structure Analyses in Terms of R2 Orientation Distribution Function

A preliminary study characterizing temporal changes in soil bacterial communities after dismembered bones were buried

Critical loss of primary implant stability in osteosynthesis locking screws under cyclic overloading

Contact Info

Product

Resources

About