Method of arthroscopically preparing an articular bone surface
OwnerRichard B. Caspari, Jeffrey G. Roberts +1inventors
InventorsRichard B. Caspari, Jeffrey G. Roberts, James T. Treace
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Abstract
Methods and apparatus for prosthetic knee replacement permit preparation of tibial plateau and femoral condyle surfaces and implant of tibial and femoral protheses components with the use of arthroscopic surgical techniques. The bone surfaces are resected by moving a rotating milling cutter longitudinally across the bone surface and moving the rotating milling cutter substantially laterally across the bone. Cement is supplied between the prostheses and the bone surfaces after positioning of the prostheses on the bone, and cement bonding is enhanced by applying suction to the bone to draw the cement into the bone.
Claims5
A method of arthroscopically preparing an external surface of an articular bone for receiving a prosthesis comprising the steps of
- providing a prosthesis having a bone engaging fixation surface for being placed against the prepared external articular bone surface;
- making a portal just large enough in size to receive a cutting instrument in the tissue adjacent the articular bone;
- visualizing the external articular bone surface arthroscopically;
- inserting a cutting instrument through the portal;
- and
- moving the cutting instrument along the external articular bone surface and contouring the external articular bone surface with the cutting instrument to have a contour corresponding to the contour of the fixation surface of the prosthesis.
A method of arthroscopically preparing an external surface of an articular bone for receiving a prosthesis comprising the steps of
- providing a prosthesis having a fixation surface for being placed against the prepared external articular bone surface;
- making a portal of minimal size in the tissue adjacent the articular bone;
- visualizing the external articular bone surface with an arthroscope;
- inserting a cutting instrument through the portal;
- and
- moving the cutting instrument along the external articular bone surface and shaping the external articular bone surface with the cutting instrument to have a configuration complementary to the configuration of the fixation surface of the prosthesis.
Dependencies are inferred from the claim text.