Distal femoral jig assembly
AssigneeDepuy Ireland Unlimited Company
InventorsSTUART GRANT, XIAOHUI DONG
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Abstract
A cutting apparatus for resecting a distal face of a femur prior to implanting a femoral component of a total knee prosthesis, comprises an elongate rod adapted for inserting into an intramedullary canal of the femur, a distal femoral cutting block, and a distal femoral jig assembly. The jig assembly can position the distal femoral cutting block on either left leg or right leg. It includes a distal femoral jig having at least one passage for slidingly receiving the rod with a preset valgus angle and a distal end face being adapted for abutting against on the distal face of the femur of either left leg or right leg dependent on its two flip orientations.
Claims6
1-20. (canceled)
An orthopaedic surgical instrument system, the system comprising:
- a rod adapted for insertion into an intramedullary canal of a patient's femur,
- a distal femoral cutting block configured for guiding resection of the distal face of the patient's femur, the distal femoral cutting block including a central opening defined in a distal surface,
- an outrigger including (i) a beam, (ii) a pair of legs extending distally from the beam, (iii) a trunnion extending proximally from the beam, the trunnion being sized to be received in the central opening of the distal femoral cutting block, and (iv) a tip moveably coupled to the beam, the tip being configured to selectively engage the distal femoral cutting block to couple the distal femoral cutting block to the outrigger, and
- a mounting block including (i) an end face adapted for abutting the distal face of the patient's femur, (ii) a passageway sized to slidingly receive the rod, and (iii) a pair of through holes, each through hole being sized to receive one of the pair of legs of the outrigger,
- wherein each leg of the pair of legs is configured to frictionally engage the mounting block within its corresponding through hole to prevent the outrigger from sliding off the mounting block.
Dependencies are inferred from the claim text.