A biomechanical model for real-time simulation of PMMA injection with haptics
| Autor: | Chee-Kong Chui, Swee Hin Teoh, Zhengyi Lian |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Materials science
Health Informatics macromolecular substances Models Biological Power law Viscoelasticity Rheology medicine Humans Polymethyl Methacrylate Computer Simulation health care economics and organizations Simulation Curing (chemistry) Pressure drop Vertebroplasty technology industry and agriculture Reproducibility of Results equipment and supplies Biomechanical Phenomena Computer Science Applications body regions Orthopedics medicine.anatomical_structure Reaction Tomography Cancellous bone Algorithms Biomedical engineering |
| Zdroj: | Computers in Biology and Medicine. 38:304-312 |
| ISSN: | 0010-4825 |
| Popis: | We have developed a computationally efficient rheological model to simulate polymethylmethacrylate (PMMA) injection into cancellous bone during percutaneous vertebroplasty. The model employs the Hagen-Poiseuille law to predict pressure drop across a delivery cannula with viscoelastic changes of curing PMMA modeled via a time and shear-rate-dependent power law. The power law was derived based on dynamic rheological testing of curing PMMA samples. In conjunction with a branching-pipe geometrical model that is reconstructed from micro-computed tomography scans of cancellous bone for estimating pressure changes during PMMA flow in bone, the method provides a fast estimation of overall injection pressure, and, hence, the reaction force during manual PMMA injection. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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