Femoral hip prosthesis

Details Femoral hip prosthesis Femoral hip prosthesis

1983-04-29

1986-08-26

Apley, Richard J.

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

Implantable prosthesis

Bone

128 92C, A61F 232

Patent

active

046080538

ABSTRACT:
A femoral hip joint prosthesis with a stem (6) which is intended for anchorage without cement in the femur (1) and the proximal end section of which, in order to substantially fill the spongy part of the femur, is greatly thickened in the trochanteric region (14) thereof, as compared with its distal section (12), comprises a thickening which is made in the form of a plurality of longitudinal ribs (15) which project from a slender stem core (17) on the dorsal and ventral sides thereof and which face the medial side with a broad surface and have a multiplicity of perforations (20) which are substantially closed towards the ridge (18) of the rib. As a result, the conditions for the transmission of forces to the bone tissue in the proximal end section of the prosthesis stem are improved, it being possible at the same time to exert a favorable influence on the elasticity of the stem.

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