| 摘要 |
An intruder tool (38) for use in shaping the upper end of the tibial bone (40) for subsequent cemented placement of the tibial component (10) is disclosed. The intruder tool (38) has a base plate (42) mounted on a handle (44), with an outwardly projecting cutter rim (46) formed with a configuration conforming to the flow restriction wall (16) on the prosthetic component (1). The cutter rim (46) has a height, in the preferred form of the invention, corresponding to the difference between the height of the flow restriction wall (16) and the spacer pegs (14). The cutter rim (46) cooperates with the base plate (42) to define a shallow cavity (48) which may optionally be used for receiving a quantity of bone cement (30). |
