Patent ID: 6228123
Filing Date: 2001-05-08
Classification: A61F

Abstract:
A prosthesis of the type including at least a stem having a distal root portion for insertion into an intramedullary cavity and a proximal portion for supporting a head or junction componentwherein said proximal portion is solid and extends into the intramedullary cavity for a length effective to couple to surrounding bone for stress-transmissive engagement therewith, andsaid distal root portion extends from said proximal solid portion and includes a cable comprising a plurality of strands extending in a generally densely packed space-filling contiguity centrally in said cavity, the strands being selected to achieve a bending modulus of the distal root less than a bendibg modulus of said proximal portion and the natural femur such so to provide a stimulating level of strain transmission to distal bone while limiting load bearing function and thereby avoid stress shielding.