الفهرس | Only 14 pages are availabe for public view |
Abstract Implants used for osteosynthesis restore bone stiffness temporarily till the fracture union restores bones stiffness permanently. Orthopaedic implants are artificial mechanical devices that must conform to certain basic requirements like reliable function and minimal side effects. Failure is one of the most important aspects of implant materials behavior and directly influences the choice of materials and production methods in manufacturing. The choice of a material influences rigidity, corrosion characteristics, biocompatibility and tissue receptivity. The surface morphology of the implant affects its stability within the skeleton or within the surrounding cement mantle. The main categories of materials presently used in orthopedic implants are metals, polymers, ceramics, composite implants (biodegradable polymers), and carbon fiber reinforced polysulfone. Nearly all have been used for various surface morphologies. |