Modelling the mechanical behaviour of living bony interfaces
作者： P Moreo , MA Pérez , JM García-Aznar , M Doblaré , None
DOI: 10.1016/J.CMA.2007.03.020
关键词:
摘要: The main purpose of this work is to develop a computational model for living interfaces with bone implants. able qualitatively capture the evolutive behaviour bony interfaces: deterioration and ingrowth. We assume that evolution variables define mechanical state interface can be formulated following principles continuum damage mechanics (CDM) additional feature variation internal may negative allow osseointegrate partially (repair) recovering its initial stiffness. Within present study, femoral component total hip non-cemented arthroplasties has been analyzed by means 3D finite element analysis (FEA). dependence ingrowth pattern on stem stiffness studied, concluding stiffer stems improve primary fixation. Moreover, sensitivity performed studying influence patient activity, surface finishing other parameters. Overall, reproduce progressive osseointegration interfaces, obtaining results agree clinical observations.
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