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Bone remodeling in additive manufactured porous implants changes the stress distribution

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Safety and efficacy of additive manufactured porous implants is a growing concern due to several, recent recalls. The safety of bone implants depends on the effects of implantation and partial bone ingrowth on stress and strain. Finite element analysis, using two new algorithms to simulate bone ingrowth, was verified against histology results for an ovine condylar critical sized defect model. Implants were manufactured from Ti6Al4V using selective laser sintering. Results showed that partial bone formation reduces stress concentrations to safe levels, improving the long-term fatigue resistance. Higher bone ingrowth was predicted for implants made from lower modulus Titanium-tantalum alloy.
Original languageEnglish
Title of host publicationProc. SPIE 11381, Health Monitoring of Structural and Biological Systems XIV, 113812V
EditorsPaul Fromme, Zhongqing Su
PublisherSPIE Press
Volume11381
DOIs
Publication statusPublished - 22 Apr 2020
EventSPIE Smart Structures + Nondestructive Evaluation: Health Monitoring of Structural and Biological Systems XIV - California, United States
Duration: 27 Apr 20208 May 2020

Conference

ConferenceSPIE Smart Structures + Nondestructive Evaluation
CountryUnited States
CityCalifornia
Period27/04/208/05/20

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