| Abstract Scope |
Permanent metallic implants are widely used to treat bone defects and deformities caused by trauma, disease, and congenital disorders. However, these implants often require secondary removal surgeries due to complications such as infection, implant–bone mismatch, or complete bone healing, increasing healthcare costs and patient risk. Biodegradable implants provide an attractive alternative by offering temporary mechanical support while gradually degrading as new bone forms.
In this study, additive manufacturing (AM) was used to fabricate biodegradable iron–manganese–eggshell metal matrix composite porous scaffolds for orthopedic applications. The scaffolds were evaluated through immersion testing, electrochemical impedance spectroscopy, and mechanical characterization. Results demonstrated controlled degradation behavior and mechanical properties comparable to cancellous bone during 21 days of immersion. Apatite formation was observed on and within the scaffold structure, indicating good bioactivity and potential for bone regeneration. These findings highlight the potential of sustainable, additively manufactured metal matrix composite scaffolds for orthopedic repair and regeneration. |