Preliminary observations of bone ingrowth into porous materials.
A preliminary investigation has been performed (a) to determine the kinetics of bone ingrowth into porous materials and to determine if this ingrowth could be catalyzed by the presence of a foreign substrate; and (b) to measure the bonding capability of bone with a porous-surfaced metallic implant. Tests on porous-surfaced implants corroborate the work of other investigators in showing that bony tissue will grow into a porous substance that has pores large enough to support tissue nourishment. The shear strength of the bone-implant interface appears to increase with pore size and time of healing. Furthermore, it may be possible to catalyze this tissue ingrowth by the introduction into the fracture site of a foreign substance; in this experiment, glass beads 200-290mu in diameter were used.
D000818:Animals; D001672:Biocompatible Materials; D001696:Biomechanical Phenomena; D001842:Bone and Bones / Q000033:anatomy & histology / Q000502:physiology / Q000601:surgery; D004285:Dogs; D005898:Glass; D008670:Metals; D010012:Osteogenesis; D013314:Stress, Mechanical; D013499:Surface Properties
D001672:Biocompatible Materials; D008670:Metals