Robuta

https://pubmed.ncbi.nlm.nih.gov/28697401/
The high rate of required reoperation indicates that treatment of fragility fractures at the proximal humerus still remains a major challenge in trauma...
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https://en.wikibooks.org/wiki/Advanced_Structural_Analysis/Part_I_-_Theory/Failure_Modes/Fatigue/Elementary_Definitions
structural analysisadvancedparttheoryfailure
https://www.ansys.com/de-de/blog/fea-microvias-plated-through-hole
Learn how Finite Element Analysis (FEA) simulation helps engineers assess and prevent microvia and PTH fatigue failures.
at riskfatigue failurefeapths