TIBIAL RESECTION INSTRUMENTATION AND SURGICAL METHOD
 Inventors: Tim Vendrely, Memphis, Tenn.; Leo A.
Whiteside, Bridgeton, Mo.; Thomas A.
T. Carls, Memphis, Tenn.; John Steele,
Aurora, Colo.; Chris E. Johnson,
 Assignee: Smith & Nephew Richards Inc.,
 Appl. No.: 388,983
 Filed: Feb. 15,1995
 Int. CI.6 A61B 17/00
 U.S. CI 606/88; 128/898; 606/79;
 Field of Search 606/80, 82, 86,
606/87, 88, 96, 102
 References Cited
U.S. PATENT DOCUMENTS
4,016,606 4/1977 Murray et al 3/1.911
4,601,289 7/1986 Chiarizzio et al 128/305
4,938,769 7/1990 Shaw 623/20
5,080,675 1/1992 Lawes et al 623/20
5,137,536 8/1992 Koshino 623/20
5,246,459 9/1993 Elias 623/20
Smith & Nephew Richards GENESISTM Total Knee System Catalog (Sep. 1992).
Primary Examiner—Michael Powell Buiz
Assistant Examiner—Mark S. Leonardo
Attorney, Agent, or Firm—Pravel, Hewitt, Kimball &
A method of preparing a patient's proximal tibia with a surgical saw and cutting instrumentation is disclosed. The method of the present invention prepares the patient's proximal tibial to receive a tibial implant. The patient's intramedullary canal is first reamed and then an intramedullary rod is placed in the intramedullary canal as a reference. A first cutting instrument is bound on the rod above the patient's proximal tibia. The first cutting instrument includes a stylus that is used to set the depth of cut by referencing the top of the proximal tibia. The proximal tibia is then transversely cut with the saw by tracking the first cutting guide surfaces with the saw. The first cutting instrument is removed together with its stylus. A secondary cutting instrument is then placed on the rod above the proximal tibia. The second cutting instrument has a cutter at its center for cutting longitudinally into the proximal tibia. A secondary cut is made on the proximal tibia by tracking the secondary cutting instrument and a guide surface provided on the upper end of the cutters that engage the center of the proximal tibia.
9 Claims, 7 Drawing Sheets