Surgery – Instruments – Orthopedic instrumentation
Patent
1995-02-15
1996-11-26
Buiz, Michael Powell
Surgery
Instruments
Orthopedic instrumentation
128898, 606 79, 606 82, 606 86, A61B 1700
Patent
active
055780393
ABSTRACT:
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.
REFERENCES:
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patent: 4601289 (1986-07-01), Chiarizzio et al.
patent: 4938769 (1990-07-01), Shaw
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patent: 5137536 (1992-08-01), Koshino
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Smith & Nephew Richards GENESIS.TM. Total Knee System Catalog (Sep. 1992).
Carls Thomas A. T.
Johnson Chris E.
Steele John
Vendrely Tim
Whiteside Leo A.
Buiz Michael Powell
Leonardo Mark S.
Smith & Nephew Richards Inc.
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