Evaluation of a commercial, porous stainless steel as a prosthetic implant material.
In the course of evaluating various porous materials as candidates for prosthetic devices, a commercial stainless steel (316L) was found which was designed for porous filtration applications. Small bars (approximately to 3mm x 3mm x 20mm) were implanted in dog extremeties for periods of 10 to 15 weeks. The average tensile strength of the bone/(bone/metal) interface was found to be 0.975 kgf/mm2 (1380 psi) with no indication of variation with time of implantation. Scanning electron microscopy (SEM) combined with X-ray energy dispersive (XRED) analysis indicates production of calcified bone in the bone/metal composite. Inherent strength and porosity characteristic combined with biocompatbility indicate that this commercially available meterial is a viable implant candidate for attachment to the skeletal system.
D000818:Animals; D001672:Biocompatible Materials; D001842:Bone and Bones / Q000502:physiology; D004285:Dogs; D004548:Elasticity; D005069:Evaluation Studies as Topic; D010012:Osteogenesis; D011095:Polyethylenes; D019736:Prostheses and Implants; D013193:Stainless Steel; D013499:Surface Properties; D013718:Tensile Strength
D001672:Biocompatible Materials; D011095:Polyethylenes; D013193:Stainless Steel