Set of fixation stems having similar stiffness

Details Set of fixation stems having similar stiffness Set of fixation stems having similar stiffness

1993-01-21

1996-04-16

Isabella, David

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

Implantable prosthesis

Bone

623 16, 623 18, A61F 232, A61F 234

Patent

active

055078290

ABSTRACT:
An implant fixation stem has a distal portion with a controlled stiffness. In one embodiment the deflection in response to a given force is equal to other similarly designed stems to give a surgeon consistent implantation feedback regardless of implant size. The deflection is preferably provided via a slot in the stem, the slot length being determined as a function of the stem's moment of inertia. Alternate embodiments provide for flutes of unequal length.

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