Surgery – Instruments – Orthopedic instrumentation
Patent
1992-01-31
1993-06-29
Isabella, David J.
Surgery
Instruments
Orthopedic instrumentation
623 20, A61B 1900
Patent
active
052229556
ABSTRACT:
A method for preparing a patella for receiving a patellar implant and for implanting a prosthesis therein. An elongated passageway is drilled completely through formed in the patella which is then reamed to form a cavity of a size and configuration to receive the patellar prosthesis using a cannulated reamer telescoped over a guide rod positioned in the elongated passageway. Centering means may be provided for supporting the guide rod. During implantation of the prosthesis, excess marrow fat, blood and debris may escape through the passageway outlet. The second opening acts as a vent to allow optimal cement pressurization and fixation (osseointegrating) and sound patellar prosthesis fixation to the reamed cavity.
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"Surgical Procedure for The Whiteside Ortholoc Modular Knee System", Brochure published by Dow Corning Wright.
Article Entitled "Economy is the mother of a cement removal technique", Orthopedics Today, pp. 18 & 19, Sep. 1989.
Brochure published by Johnson & Johnson Orthopaedics entitled "Patellar Resurfacing with Specialist.RTM. Instruments in Total Knee Arthroplasty-Surgical Technique".
Brochure published by Dow Corning Wright entitled "Whiteside Ortholoc.RTM. Modular Knee System".
Brochure published by Intermedics Orthopedics entitled "Surgical Technique The Intermedics Natural-Knee System".
Brochure published by DePuy, Division of Boehringer Mannheim Corporation, Warsaw, Ind., p. 25.
Gualtieri Gina M.
Isabella David J.
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