About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
3D Printing of Biomaterials and Devices
|
| Presentation Title |
Biomimetic Co–Cr–Mo Porous Lattice Scaffolds with a Novel Unit Cell for TKA Implants: Linking Architecture and Mechanics |
| Author(s) |
Susantika Paik, Bikramjit Basu, Philip Withers |
| On-Site Speaker (Planned) |
Susantika Paik |
| Abstract Scope |
Porous additive-manufactured lattices offer promising solutions for enhancing osseointegration and stability in total knee arthroplasty (TKA). This study utilized selective laser melting (SLM) to fabricate novel Co–Cr–Mo lattice geometries, systematically investigating the link between manufacturing precision, mechanical performance, and biological response. High-resolution micro-CT confirmed high fidelity to design, with porosities (50–93%) and pore diameters (100–1000 µm) optimized for bone ingrowth.
Crucially, in situ mechanical testing using a Deben stage provided real-time visualization of deformation mechanisms, confirming high structural integrity and resistance to debonding under load. Mechanical results showed Young’s modulus values (0.83–15.7 GPa) effectively spanning the range of trabecular to cortical bone. This integrated analysis highlights the role of precise lattice architecture in reducing stress shielding and ensuring robust fixation, supporting the advancement of biologically favorable TKA implants. |