The Search for the Perfect Strain

Bone tissue responds dynamically to mechanical loading through mechanotransduction, where strain-induced cellular signaling drives adaptive remodeling and growth. However, identifying the optimal strain rate that maximizes osteogenic activity while avoiding maladaptive responses remains a fundamental challenge in orthopedic biomaterial design. This talk explores the intersection of bone mechanobiology and advanced manufacturing to develop metamaterial implants that harness the body's natural healing capacity.
Traditional metallic implants often exhibit mechanical mismatch to native bone, leading to stress shielding and eventual failure. Additive manufacturing enables fabrication of complex 3D-printed lattice structures with tailored mechanical properties that deliver physiologically relevant strain environments. By exploring metamaterial architectures—including triply periodic minimal surfaces, strut-based lattices, and bio-inspired designs—we can engineer implants that actively promote bone ingrowth.
This presentation details our approach to identifying the "perfect strain" for regeneration. Through finite element modeling, we characterize how different lattice geometries and porosity gradients influence local strain distributions. Our findings reveal critical design parameters bridging implant mechanics and cellular bone formation. The implications extend toward next-generation orthopedic devices that function as active participants in healing, reducing revision rates and improving patient outcomes through biomimetic mechanical conditioning.