Depuy Products, Inc.

Other

Depuy Orthopaedics, Inc.

Depuy (ireland)

Wayne Goldstein

Abraham P Wright

Diana F McCue

RamaRao Gundlapalli

Donald Marcoccio

Farid M Amirouche

Mark H Gonzalez

The present disclosure relates to a device for repairing a patient patella. The device comprises a patellar trial piece and a patellar implant. The patellar trial piece has selectable variable weights to correct mechanical properties of the patient patella. Such mechanical properties to be corrected include a moment of inertia and/or a center of gravity of the patient patella. The patellar implant has embedded weights correspond to the variable weights of the patellar trial piece. In one embodiment, the patellar trial piece has a plurality of variable weights to be inserted into a plurality of holes in the patellar trial piece. The weights are made of different materials. In another embodiment, the patellar trial piece has a rounded top surface and a substantially flat bottom surface with a plurality of pegs. The pegs are selected from pegs with variable weights that are made of different materials.

Patellar implant with variable weights for knee repair surgery

An orthopaedic implant includes a patella component having a posterior bearing surface configured to articulate with the femoral condyles of a femur, and an anterior surface having a number of pegs extending outwardly therefrom. The superior edge of the patella component is thickened relative to conventional dome-shaped patella components.

Implantable patella component having a thickened superior edge

A surgical assembly for preparing a tibia for implantation of a prosthetic implant includes a tray trial adapted to be secured to a proximal end of the tibia. The tray trial includes a plate having a plate opening defined therein. The plate opening has a center point. The surgical assembly also includes a first guide adapted to be secured to the tray trial. The first guide has a guide opening defined therein. The guide opening has a first bushing-receiving portion and a second bushing-receiving portion which is distinct from the first bushing-receiving portion. The surgical assembly also includes a drill bushing positionable in either the first bushing-receiving portion of the guide opening or the second bushing-receiving portion of the guide opening. The drill bushing has a bushing bore extending therethrough. The bushing bore has a center point. The center point of the bushing bore of the drill bushing is offset from the center point of the plate opening of the tray trial in a first direction when the drill bushing is positioned in the first bushing-receiving portion of the guide opening. The center point of the bushing bore of the drill bushing is offset from the center point of the plate opening of the tray trial in a second direction when the drill bushing is positioned in the second bushing-receiving portion of the guide opening. A method of surgically preparing a tibia for implantation of a prosthetic implant is also disclosed.

Method and apparatus for surgically preparing a tibia for implantation of a prosthetic implant component which has an offset stem

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Highland Park, IL, United States of America

Wayne Goldstein