Hip joint prosthesis having a hollow shaft

Details Hip joint prosthesis having a hollow shaft Hip joint prosthesis having a hollow shaft

1983-11-23

1986-06-17

Apley, Richard J.

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

Implantable prosthesis

Bone

128 92C, 128 92CA, A61F 104

Patent

active

045953937

ABSTRACT:
In a hip joint prosthesis having an elongated hollow shaft, a neck portion, a ball joint connected to the neck portion and a detachable mounting ring coupling the shaft to the neck portion; and wherein the shaft is provided with local sections of weakened material, the material is adapted, with respect to its deformation characteristics, to those of the surrounding bone region and the adaptation of the longitudinal rigidity and/or resistance to bending of the shaft is effected by the targeted provision of sections of weakened material.

REFERENCES:
patent: 3064645 (1962-11-01), Ficat et al.
patent: 4064567 (1977-12-01), Burstein et al.
patent: 4287617 (1981-09-01), Tornier
Morscher et al., "Erste Erfahrungen mit einer zementlosen isoelastischen Totalprothese der Hufte", Z. Orthop 113 (1975), pp. 745-749.

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