Implantable Prosthesis for Replacing the Human Knee Joint

摘要

The implantable prosthesis for replacing a human knee joint comprises a femoral prosthetic element (12) and a tibial prosthetic element (14) which are articulated with one another by means of a joint device (30) for the purpose of executing a knee bend. The tibial prosthetic element (14) has a through-opening (40) for the passage of a tool (84), a rod-like shaft anchoring part (32) or an intramedullary lengthening nail (80). In order to reduce the extent of a surgical intervention and thus the risk of infection also for the lengthening of the tibia, the joint device (30) is designed such that it forms a guide channel (42) for the passage of the tool (84), the rod-like shaft anchoring part (32) or the intramedullary lengthening nail (80) from the outside, which guide channel is in alignment with the through-opening (40) and is in connection therewith when the tibial prosthetic element (14) and the femoral prosthetic element (12) are arranged at a predetermined angle relative to one another in a functional position corresponding to a knee bend.

主权项

1. An implantable prosthesis for replacing a human knee joint, comprising:
a femoral prosthetic element and a tibial prosthetic element which are articulated with one another by means of a joint device for the purpose of executing a knee bend, the tibial prosthetic element having a through-opening for the passage of a tool, a rod-like tibial shaft anchoring part or an intramedullary lengthening nail, wherein the joint device is designed such that that it forms a guide channel for the passage of the tool, the rod-like tibial shaft anchoring part or the intramedullary lengthening nail from the outside, which guide channel is in alignment with the through-opening and is in connection therewith when the tibial prosthetic element and the femoral prosthetic element are arranged at a predetermined angle relative to one another in a functional position corresponding to a knee bend.