Femoral component of a knee prosthesis having an angled cement pocket
AssigneeDePuy Products, Inc.
InventorsChristel M. Wagner, Joseph G. Wyss, David Barrett
Life of this patent
Estimating the term…
Abstract
An implantable orthopaedic knee prosthesis includes a femoral component that is configured to be coupled to a surgically-prepared distal femur. The femoral component has an articular side that includes a posterior femoral condyle surface. A fixation side is opposite the articular side, and it includes a posterior fixation surface that extends generally in the superior/inferior direction. The posterior fixation surface has an angled posterior cement pocket formed therein.
Claims22
An implantable orthopaedic knee prosthesis, comprising:
- a femoral component configured to be coupled to a surgically-prepared distal femur, the femoral component having (i) an articular side comprising a posterior femoral condyle surface, and (ii) a fixation side that is opposite the articular side, the fixation side comprising a posterior fixation surface that extends generally in the superior/inferior direction, wherein the posterior fixation surface has a posterior cement pocket formed therein, the posterior cement pocket is deeper at its inferior end than at its superior end.
An implantable orthopaedic knee prosthesis, comprising:
- a femoral component configured to be coupled to a surgically-prepared distal femur, the femoral component having (i) an articular side comprising a posterior femoral condyle surface, and (ii) a fixation side that is opposite the articular side, the fixation side comprising a posterior fixation surface that extends generally in the superior/inferior direction,
- wherein the posterior fixation surface comprises (i) a peripheral rim, (ii) a bottom wall spaced apart posteriorly from the peripheral rim, and (iii) a sidewall extending posteriorly from the posterior rim to the bottom wall,
- wherein, when viewed sagittally, an imaginary plane defined by the peripheral rim forms an acute angle with an imaginary plane defined by the bottom wall.
An implantable orthopaedic knee prosthesis, comprising:
- a tibial tray configured to be coupled to a surgically-prepared proximal tibia,
- a bearing coupled to the tibial tray, the bearing having a medial articular surface and a lateral articular surface, and
- a femoral component configured to be coupled to a surgically-prepared distal femur, the femoral component having (i) a lateral condyle surface configured to articulate with the lateral articular surface of the bearing and a medial condyle configured to articulate with the medial articular surface of the bearing, (ii) a posterior lateral fixation surface opposite the lateral condyle surface, the posterior lateral fixation surface extending in the superior/inferior direction, and (iii) a posterior medial fixation surface opposite the medial condyle surface, the posterior medial fixation surface extending in the superior/inferior direction,
- wherein both the posterior medial fixation surface and the posterior lateral fixation surface comprise (i) a peripheral rim, (ii) a bottom wall spaced apart posteriorly from the peripheral rim, and (iii) a sidewall extending posteriorly from the posterior rim to the bottom wall,
- wherein, when viewed sagittally, an imaginary plane defined by the peripheral rim forms an acute angle with an imaginary plane defined by the bottom wall.
An implantable orthopaedic knee prosthesis, comprising:
- a femoral component configured to be coupled to a surgically-prepared distal femur, the femoral component having (i) an articular side comprising a femoral condyle surface, and (ii) a fixation side that is opposite the articular side, the fixation side comprising a fixation surface that extends generally in the superior/inferior direction, wherein the fixation surface has a cement pocket formed therein, the cement pocket is deeper at its inferior end than at its superior end.
Dependencies are inferred from the claim text.