Distal femoral knee prostheses

Abstract

A set of distal femoral knee prostheses which are designed to be more narrow in medial/lateral dimensions with increasing anterior/posterior size than existing prostheses to more closely correspond to the physical anatomy of female patients. The prostheses are designed to have a substantially trapezoidal shape or profile when viewed distally which features a more pronounced narrowing of the medial/lateral dimensions beginning at the posterior end of the prostheses and progressing anteriorly to the anterior end of the prostheses. Additionally, the prostheses each include a reduced profile patellar sulcus and reduced profile anterior condyles to more closely conform to the anatomy of a resected femur, and also include sulcus tracking optimized to conform to female anatomy.

1 - 6 . (canceled) 
     
     
         7 . A distal femoral prosthesis, comprising:
 lateral and medial anterior condyles;   a non-articulating surface having a distal plane;   a patellar sulcus disposed between said lateral and medial anterior condyles, said sulcus having an end point located at a distance between 28.6 and 38.8 mm from said distal plane, said end point lateralized a distance between 5.3 and 7.0 mm from a line extending perpendicularly from said distal plane.