Method of implanting a prosthesis

• US 5,395,376 A
• Filed: 10/09/1991
• Issued: 03/07/1995
• Est. Priority Date: 01/08/1990
• Status: Expired due to Term

• Current Assignee: Zimmer Technology Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: James T. Treace, Jeffrey G. Roberts, Richard B. Caspari
• Inventors: Roberts, Jeffrey G., Treace, James T., Caspari, Richard B.
• Primary Examiner(s): Rimell, Sam
• Application Number:
  US07/785,428
• Time in Patent Office: 1,245 Days
• Field of Search: 606/86, 606/87, 606/88, 606/92, 606/93, 606/94, 606/99
• US Class Current: 606/86.00R
• CPC Class Codes: A61B 17/15 Guides therefor arrangements for guiding straight saw blades in general B23D51/025
• CPC Class Codes: A61B 17/1615 Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
• CPC Class Codes: A61B 17/1624 Drive mechanisms therefor
• CPC Class Codes: A61B 17/1675 for the knee
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 17/7098 wherein the implant is permeable or has openings, e.g. fenestrated screw hollow surgical screws A61B17/864
• CPC Class Codes: A61B 17/8822 characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
• CPC Class Codes: A61B 2017/00544 pneumatically
• CPC Class Codes: A61B 2017/1602 Mills
• CPC Class Codes: A61F 2/38 for elbows or knees
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 2205/103 rotating
• CPC Class Codes: Y10S 623/919 Bone
• CPC Class Codes: Y10T 407/1948 with cutting edge entirely across end of tool [e.g., router bit, end mill, etc.]

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.

Claims

1. A method of implanting a prosthesis in the body comprising the steps of

preparing a surface of tissue to engage the prosthesis;

placing the prosthesis against the tissue surface;

inserting cement between the prosthesis and the tissue surface after the prosthesis is placed against the tissue surface; and

applying suction to the tissue to create a vacuum to draw the cement into the tissue to form a mechanical bond.

2. A method of implanting a prosthesis in the body as recited in claim 1 wherein said cement inserting step includes inserting cement through the prosthesis.

3. A method of implanting a prosthesis as recited in claim 1 wherein the prosthesis has a recess therein forming, with the tissue surface, a chamber and said step of inserting cement includes injecting cement in the chamber.

4. A method of implanting a prosthesis as recited in claim 1 wherein the tissue is bone and said step of applying suction includes applying suction to the bone.

6. A method of implanting a prosthesis as recited in claim 4 wherein the prosthesis has a recess therein forming, with the bone surface, a chamber and said step of applying cement includes inserting cement into the chamber with the prosthesis placed against the bone surface.

5. A method of implanting a prosthesis on a bone surface in the body comprising the steps of

applying cement between the prosthesis and the bone surface;

and

applying suction to the bone to draw the cement into the bone to form a mechanical bond.