Tibial impaction guide surgical instrument and method of using same
AssigneeDepuy Ireland Unlimited Company
InventorsFilip Leszko, Jonathan C. Lee, Craig S. Tsukayama
Life of this patent
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Abstract
An orthopaedic surgical instrument includes a cup including an outer surface having an opening positioned on a component-engaging side and an inner wall extending from the opening of the outer surface to a back wall. The inner wall having a plurality of stepped surfaces facing the component-engaging side. Each of the plurality of stepped surfaces is sized to receive a platform of a tibial tray.
Claims20
An orthopaedic surgical instrument having a component-engaging side and a back side includes:
- a cup positioned on the component-engaging side, the cup including:
- (i) an outer surface having an opening positioned on the component-engaging side and (ii) an inner wall extending from the opening of the outer surface to a back wall, the inner wall having a plurality of stepped surfaces facing the component-engaging side,
- a slot defined in the cup that extends from the component-engaging side to the back side, through the outer surface and the inner wall, and
- a collar coupled to the outer surface of the cup toward the back side, the collar including (i) an opening toward the back side sized to receive an impaction handle and (ii) a flange positioned in the opening that is configured to be secured to the impaction handle,
- wherein each of the plurality of stepped surfaces is sized to receive a platform of a tibial tray.
A method of implanting a prosthetic component into a proximal end of a tibia, the method comprising:
- securing an impaction guide to an end of an elongated impaction handle,
- fitting a platform of a tibial tray into one of a plurality of stepped surfaces of the impaction guide,
- inserting a stem coupled to the tibial tray into a surgically prepared intramedullary canal of the tibia, the intramedullary canal having a keel-punched slot,
- rotating the impaction handle axially to align an indicator of the impaction guide with the keel-punched slot of the intramedullary canal, and
- advancing the tibial tray into the intramedullary canal using the impaction handle.
A method of implanting a prosthetic component into a proximal end of a tibia, the method comprising:
- securing an impaction guide to an end of an elongated impaction handle,
- securing an alignment rod to the impaction guide,
- fitting a platform of a tibial tray into one of a plurality of stepped surfaces of the impaction guide,
- making a reference marking on the tibia,
- inserting a stem coupled to the tibial tray into a surgically prepared intramedullary canal of the tibia, the intramedullary canal having a keel-punched slot,
- rotating the impaction handle axially to position the alignment rod in a common imaginary plane with the reference mark on the tibia and a center of the intramedullary canal, and
- advancing the tibial tray into the intramedullary canal using the impaction handle.
An orthopaedic surgical instrument having a component-engaging side and a back side includes a cup positioned on the component-engaging side, the cup including:
- (i) an outer surface having an opening positioned on the component-engaging side and (ii) an inner wall extending from the opening of the outer surface to a back wall, the inner wall having a plurality of stepped surfaces facing the component-engaging side, wherein each of the plurality of stepped surfaces is sized to receive a platform of a tibial tray.
Dependencies are inferred from the claim text.