Biodegradable bone templates

Details Biodegradable bone templates Biodegradable bone templates

1993-07-23

1996-06-04

Prebilic, Paul B.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 11, 606 76, 606 77, A61F 228

Patent

active

055228950

ABSTRACT:
A biodegradable, bioresorbable, three-dimensional template for repair and replacement of diseased or injured bone which provides mechanical strength to bone while also providing a guide for growth of bone tissue. Preferably, the template is formed of biodegradable materials, for example, poly(L-lactic acid), poly(D, L-lactic acid), poly (D, L-lactic-co-glycolic acid), poly (glycolic acid), poly (.epsilon.-caprolactone), polyortho esters, and polyanhydrides, and has the capacity of being rendered porous, either in vitro or in vivo. A pore-forming component, which may or may not be a polymeric material, is mixed within a continuous matrix formed of a biodegradable material, the pore-forming component having a rate of degradation which exceeds that of the matrix. Differential dissolution or biodegradation provides porosity to the template.

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