Crystallinity dependency of the time-dependent ...
Type de document :
Article dans une revue scientifique: Article original
PMID :
URL permanente :
Titre :
Crystallinity dependency of the time-dependent mechanical response of polyethylene: application in total disc replacement
Auteur(s) :
Jiang, Qifeng [Auteur]
Zairi, Fahmi [Auteur]
Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515
Frederix, Caroline [Auteur]
Derrouiche, Amil [Auteur]
Yan, Zhu [Auteur]
Qu, Zhengwei [Auteur]
Liu, Xiaobing [Auteur]
Zairi, Fahed [Auteur]
Zairi, Fahmi [Auteur]
Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515
Frederix, Caroline [Auteur]
Derrouiche, Amil [Auteur]
Yan, Zhu [Auteur]
Qu, Zhengwei [Auteur]
Liu, Xiaobing [Auteur]
Zairi, Fahed [Auteur]
Titre de la revue :
Journal of materials science. Materials in medicine
Nom court de la revue :
J. Mater. Sci.-Mater. Med.
Numéro :
30
Date de publication :
2019-04-01
ISSN :
0957-4530
Discipline(s) HAL :
Sciences du Vivant [q-bio]
Résumé en anglais : [en]
Degeneration of the intervertebral disc (IVD) is a leading source of chronic low back pain or neck pain, and represents the main cause of long-term disability worldwide. In the aim to relieve pain, total disc replacement ...
Lire la suite >Degeneration of the intervertebral disc (IVD) is a leading source of chronic low back pain or neck pain, and represents the main cause of long-term disability worldwide. In the aim to relieve pain, total disc replacement (TDR) is a valuable surgical treatment option, but the expected benefit strongly depends on the prosthesis itself. The present contribution is focused on the synthetic mimic of the native IVD in the aim to optimally restore its functional anatomy and biomechanics, and especially its time-dependency. Semi-crystalline polyethylene (PE) materials covering a wide spectrum of the crystallinity are used to propose new designs of TDR. The influence of the crystallinity on various features of the time-dependent mechanical response of the PE materials is reported over a large strain range by means of dynamic mechanical thermo-analysis and video-controlled tensile mechanical tests. The connection of the stiffness and the yield strength with the microstructure is reported in the aim to propose a model predicting the crystallinity dependency of the response variation with the frequency. New designs of TDR are proposed and implemented into an accurate computational model of a cervical spine segment in order to simulate the biomechanical response under physiological conditions. Predicted in-silico motions are found in excellent agreement with experimental data extracted from published in-vitro studies under compression and different neck movements, namely, rotation, flexion/extension and lateral bending. The simulation results are also criticized by analyzing the local stresses and the predicted biomechanical responses provided by the different prosthetic solutions in terms of time-dependency manifested by the hysteretic behavior under a cyclic movement and the frequency effect.Lire moins >
Lire la suite >Degeneration of the intervertebral disc (IVD) is a leading source of chronic low back pain or neck pain, and represents the main cause of long-term disability worldwide. In the aim to relieve pain, total disc replacement (TDR) is a valuable surgical treatment option, but the expected benefit strongly depends on the prosthesis itself. The present contribution is focused on the synthetic mimic of the native IVD in the aim to optimally restore its functional anatomy and biomechanics, and especially its time-dependency. Semi-crystalline polyethylene (PE) materials covering a wide spectrum of the crystallinity are used to propose new designs of TDR. The influence of the crystallinity on various features of the time-dependent mechanical response of the PE materials is reported over a large strain range by means of dynamic mechanical thermo-analysis and video-controlled tensile mechanical tests. The connection of the stiffness and the yield strength with the microstructure is reported in the aim to propose a model predicting the crystallinity dependency of the response variation with the frequency. New designs of TDR are proposed and implemented into an accurate computational model of a cervical spine segment in order to simulate the biomechanical response under physiological conditions. Predicted in-silico motions are found in excellent agreement with experimental data extracted from published in-vitro studies under compression and different neck movements, namely, rotation, flexion/extension and lateral bending. The simulation results are also criticized by analyzing the local stresses and the predicted biomechanical responses provided by the different prosthetic solutions in terms of time-dependency manifested by the hysteretic behavior under a cyclic movement and the frequency effect.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
IMT Lille Douai
INSERM
Institut Catholique Lille
Univ. Artois
Université de Lille
INSERM
Institut Catholique Lille
Univ. Artois
Université de Lille
Collections :
Date de dépôt :
2022-06-15T13:57:41Z