About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
3D Printing of Biomaterials and Devices
|
| Presentation Title |
In Vivo Performance of Additive Manufacturing Implants vs. Commercially Available Implants |
| Author(s) |
Mari Koike, Azusa Seki, Yutaka Yanaba, Susan K Hummel, Toru Okabe |
| On-Site Speaker (Planned) |
Mari Koike |
| Abstract Scope |
The objective of this study was to evaluate in vivo performance of additive manufacturing (AM) implants compared to a commercially available SETiO®Plus implant. The AM implants were fabricated using Ti6Al4V ELI alloy powder, with and without lattice structures, matching the same overall geometry of SETiO®Plus implants (3.0 mm/diameter, 8.0 mm/length). Specimens from each implant type (n=4/type) were placed in the femurs of 3 rabbits and retrieved after six weeks. A push-out test and histological analysis were performed. The data were analyzed using one-way ANOVA followed by Tukey’s test (α=0.05). The push-out tests showed that the shar stiffness of AM implants with lattice structure and SETiO®Plus implants tended to be higher than that of AM implants without lattice structure. Histological analyses indicated osseointegration without inflammatory responses surrounding bone with all the type of implants. AM technology will be a promising method to fabricate customized porous implants in the future. |