Patent ID: 6383228
Filing Date: 2002-05-07
Classification: A61F

Abstract:
A femoral hip-joint prosthesis for implantation by cement with a stem having a longitudinal axis, a proximal end, a distal end, a collarless shoulder, an anterior side face and a posterior side face, a first subsidiary section and a second subsidiary section, wherein the collarless shoulder is located in the region of said proximal end;the stem has in at least one portion a quadrilateral cross section; the stem extends along the longitudinal axis and tapers from the proximal end toward the distal end; the first subsidiary section begins in the region of the proximal end and extends along the longitudinal axis; the second subsidiary section is located distally of the first subsidiary section and extends along the longitudinal axis; and the anterior side face and the posterior side face, in the direction of the longitudinal axis, have, in the first subsidiary section, a logarithmically extending curvature and thereafter, in the second subsidiary section, extend in a straight line and converge.