TY - JOUR A1 - Titlbach, Anna A1 - Papastavrou, Areti A1 - McBride, Andrew A1 - Steinmann, Paul T1 - A novel micromorphic approach captures non-locality in continuum bone remodelling JF - Computer Methods in Biomechanics and Biomedical Engineering KW - bone remodelling KW - micromorphic continuum KW - density growth KW - non-locality KW - finite element method Y1 - 2023 U6 - https://doi.org/10.1080/10255842.2023.2223331 SN - 1025-5842 VL - 27 IS - 8 SP - 1042 EP - 1055 PB - Informa UK Limited ER - TY - JOUR A1 - Schmidt, Ina A1 - Albert, Jacob A1 - Ritthaler, Marina A1 - Papastavrou, Areti A1 - Steinmann, Paul T1 - Bone fracture healing within a continuum bone remodelling framework JF - Computer Methods in Biomechanics and Biomedical Engineering N2 - Bone fracture healing is a complex process which is still under research. Computer-aided patient-specific prediction of bone development, fracture risk, prevention and treatment approaches promises a significant milestone in clinical practice. With this long-term goal in mind, a novel model is presented and examined in this work in the context of continuum bone remodelling. Therein, a clear distinction is made between external mechanical stimulation and the biological healing process of an injured bone tissue. The model is implemented within a finite element framework and investigated for the example of a fractured proximal femur head. The results show promising perspectives for further application. Besides, the model offers the possibility of easily integrating other factors like age-dependency and the availability of nutrition. For the future, further studies with large clinical datasets are essential for validation. KW - bone remodelling KW - healing KW - bone fracture KW - femur head KW - finite element method Y1 - 2021 U6 - https://doi.org/10.1080/10255842.2021.1998465 SN - 1476-8259 VL - 25 (2022) IS - 9 SP - 1040 EP - 1050 PB - Informa UK Limited ER - TY - JOUR A1 - Schmidt, Ina A1 - Papastavrou, Areti A1 - Steinmann, Paul T1 - Concurrent consideration of cortical and cancellous bone within continuum bone remodelling JF - Computer Methods in Biomechanics and Biomedical Engineering KW - bone remodelling KW - cortical bone KW - cancellous bone KW - density change KW - finite element method Y1 - 2021 U6 - https://doi.org/10.1080/10255842.2021.1880573 SN - 1476-8259 VL - 24 (2021) IS - 11 SP - 1274 EP - 1285 PB - Informa UK Limited CY - London ER - TY - JOUR A1 - Schaller, Emely A1 - Javili, Ali A1 - Schmidt, Ina A1 - Papastavrou, Areti A1 - Steinmann, Paul T1 - A peridynamic formulation for nonlocal bone remodelling JF - Computer Methods in Biomechanics and Biomedical Engineering N2 - Bone remodelling is a complex biomechanical process, which has been studied widely based on the restrictions of local continuum theory. To provide a nonlocal bone remodelling framework, we propose, for the first time, a peridynamic formulation on the macroscale. We illustrate our implementation with a common benchmark test as well as two load cases of the proximal femur. On the one hand, results of our peridynamic model with diminishing nonlocality measure converge to the results of a local finite element model. On the other hand, increasing the neighbourhood size shows to what extent the additional degree of freedom, the nonlocality, can influence the density evolution. KW - bone remodelling KW - peridynamics KW - nonlocal material KW - density evolution KW - influence of nonlocality Y1 - 2022 U6 - https://doi.org/10.1080/10255842.2022.2039641 SN - 1476-8259 VL - 25 (2022) IS - 16 SP - 1835 EP - 1851 PB - Informa UK Limited ER -