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A porous structure comprises pores and pore throats with a complex three-dimensional (3D) network structure, and many investigators have described the relationship between average pore size and the amount of bone ingrowth. However, the influence of network structure or pore throats for tissue ingrowth has rarely been discussed. Four types of bioactive porous titanium implants with different pore sizes...
A segmental rabbit femur defect was repaired using an empty bioactive titanium (BAT) mesh cage. A 10mm long titanium mesh cage was positioned in the bony defect and reinforced by intramedullary fixation. The BAT surface was prepared by chemical and thermal treatment. Pure titanium cages were used as a control. Torsional stiffness of the BAT group at 4 weeks was approximately equal to, and at 8 weeks...
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