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/Functionally Graded Polymer Knee Implant For Enhanced Fixation, Wear Resistance, And Mechanical Properties And The Fabrication Thereof
Abstract

A polymeric based femoral and/or tibial component implant can be be used in total knee replacement/arthroplasty procedures serving to provide increased wear resistance, enhanced physiological response at the bone/implant interface, and decreased stress-shielding. The implant can be made via additive manufacturing. The articulating surface of the implant may be implemented in without any additive or in a form containing an additive for improved tribological response. Further, the a device contains an interfacial surface which is in contact with the native bone (i.e., bone/implant interface) which may exist in its pure form, containing a bioactive additive. The implant has a porous morphology on the bone/implant interface for improved biological response and improved fixation. The depth of the additives and the topographical morphology therein are controlled via techniques disclosed herein.

Full Text

What is claimed is:

A polymeric based femoral and/or tibial component implant can be be used in total knee replacement/arthroplasty procedures serving to provide increased wear resistance, enhanced physiological response at the bone/implant interface, and decreased stress-shielding. The implant can be made via additive manufacturing. The articulating surface of the implant may be implemented in without any additive or in a form containing an additive for improved tribological response. Further, the a device contains an interfacial surface which is in contact with the native bone (i.e., bone/implant interface) which may exist in its pure form, containing a bioactive additive. The implant has a porous morphology on the bone/implant interface for improved biological response and improved fixation. The depth of the additives and the topographical morphology therein are controlled via techniques disclosed herein.
Timeline
Filed
02/27/2026
Published
07/02/2026
Granted
Not Available
IPC Codes(5)
A61L 27/46:with phosphorus-containing inorganic fillers
A61L 27/16:obtained by reactions only involving carbon-to-carbon unsaturated bonds
A61L 27/18:obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds