Article (Scientific journals)
Effect of ultrasound on bone fracture healing: A computational mechanobioregulatory model.
Grivas, Konstantinos N; Vavva, Maria G; Polyzos, Demosthenes et al.
2019In Journal of the Acoustical Society of America, 145 (2), p. 1048
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Keywords :
Animals; Biomechanical Phenomena/radiation effects; Bone and Bones/cytology/radiation effects; Computer Simulation; Fracture Healing/physiology/radiation effects; Fractures, Bone/physiopathology; Models, Biological; Osteogenesis/radiation effects; Ultrasonic Waves
Abstract :
[en] Bone healing process is a complicated phenomenon regulated by biochemical and mechanical signals. Experimental studies have shown that ultrasound (US) accelerates bone ossification and has a multiple influence on cell differentiation and angiogenesis. In a recent work of the authors, a bioregulatory model for providing bone-healing predictions was addressed, taking into account for the first time the salutary effect of US on the involved angiogenesis. In the present work, a mechanobioregulatory model of bone solidification under the US presence incorporating also the mechanical environment on the regeneration process, which is known to affect cellular processes, is presented. An iterative procedure is adopted, where the finite element method is employed to compute the mechanical stimuli at the linear elastic phases of the poroelastic callus region and a coupled system of partial differential equations to simulate the enhancement by the US cell angiogenesis process and thus the oxygen concentration in the fractured area. Numerical simulations with and without the presence of US that illustrate the influence of progenitor cells' origin in the healing pattern and the healing rate and simultaneously demonstrate the salutary effect of US on bone repair are presented and discussed.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Grivas, Konstantinos N;  Department of Mechanical Engineering and Aeronautics, University of Patras, GR
Vavva, Maria G;  Department of Mechanical Engineering and Aeronautics, University of Patras, GR
Polyzos, Demosthenes;  Department of Mechanical Engineering and Aeronautics, University of Patras, GR
Carlier, Aurélie;  Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300C-PB 2419,
Geris, Liesbet  ;  Université de Liège - ULiège > GIGA > GIGA In silico medecine - Biomechanics Research Unit ; Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300C-PB 2419,
Van Oosterwyck, Hans;  Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300C-PB 2419,
Fotiadis, Dimitrios I;  Department of Materials Science and Engineering, University of Ioannina, GR
Language :
English
Title :
Effect of ultrasound on bone fracture healing: A computational mechanobioregulatory model.
Publication date :
February 2019
Journal title :
Journal of the Acoustical Society of America
ISSN :
0001-4966
eISSN :
1520-8524
Publisher :
Acoustical Society of America, Us ny
Volume :
145
Issue :
2
Pages :
1048
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 29 June 2022

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