Shaft for prosthesis

Details Shaft for prosthesis Shaft for prosthesis

1990-10-25

1992-07-28

Isabella, David

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

Implantable prosthesis

Bone

623 16, A61F 232

Patent

active

051337703

ABSTRACT:
A shaft for a hip joint prosthesis is provided with a square cross-section in the distal region of the shaft. In addition, teeth are provided along each corner of the shaft to provide support on a cortical bone. At least some of other teeth are directed in the proximal direction to displace the osseous tissue rather thanto exert a cutting force on the osseous tissue. The angular stresses occurring when the shaft is inserted in a bone are reduced without the loss of the spaces between the sides of the shaft and bone for the growth of osseous tissue and a revascularization of the bone.

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